diff --git a/__init__.py b/__init__.py
index 4f93020..f49f0c7 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,5 +1,3 @@
-
-
 if "bpy" not in locals():
     import bpy
     from . import ui
@@ -7,28 +5,40 @@ if "bpy" not in locals():
     from . import functions
     from .core import register
     from .core.register import __bl_ordered_classes
+    from .core import properties
+    from .core import addon_preferences
 else:
     import importlib
     importlib.reload(ui)
     importlib.reload(core)
     importlib.reload(functions)
-
+    importlib.reload(properties)
+    importlib.reload(addon_preferences)
 
 def register():
     print("Registering Avatar Toolkit")
+    # Register the addon properties
+    properties.register()
+
+    # Load the translations
+    functions.translations.load_translations()
+
     # Order the classes before registration
     core.register.order_classes()
+    # Register the properties
+    core.register.register_properties()
     # Register the UI classes
-    
-    # Iterate over the classes to register and register them
     for cls in __bl_ordered_classes:
         print("registering" + str(cls))
         bpy.utils.register_class(cls)   
+
 def unregister():
     print("Unregistering Avatar Toolkit")
     # Unregister the UI classes
-    
+
     # Iterate over the classes to unregister in reverse order and unregister them
     for cls in reversed(list(__bl_ordered_classes)):
         bpy.utils.unregister_class(cls)
-        print("unregistering" + str(cls))
+        print("unregistering " + str(cls))
+    core.register.unregister_properties()
+    properties.unregister()
diff --git a/core/__init__.py b/core/__init__.py
index d1f53d5..50c92e7 100644
--- a/core/__init__.py
+++ b/core/__init__.py
@@ -1,7 +1,6 @@
 # core/__init__.py
 
 from .register import register_wrap
-from . import pmx
 
 #to reload all things in this directory and import them properly - @989onan
 if "bpy" not in locals():
diff --git a/core/addon_preferences.py b/core/addon_preferences.py
new file mode 100644
index 0000000..7949f1d
--- /dev/null
+++ b/core/addon_preferences.py
@@ -0,0 +1,43 @@
+import bpy
+import os
+import json
+from bpy.types import AddonPreferences
+from typing import Any, Dict
+
+# Get the directory of the current file
+PREFERENCES_DIR = os.path.dirname(os.path.abspath(__file__))
+PREFERENCES_FILE = os.path.join(PREFERENCES_DIR, "preferences.json")
+
+def save_preference(key: str, value: Any) -> None:
+    """Save a single preference to the JSON file."""
+    prefs = load_preferences()
+    prefs[key] = value
+    with open(PREFERENCES_FILE, 'w') as f:
+        json.dump(prefs, f, indent=4)
+
+def load_preferences() -> Dict[str, Any]:
+    """Load all preferences from the JSON file."""
+    if os.path.exists(PREFERENCES_FILE):
+        with open(PREFERENCES_FILE, 'r') as f:
+            return json.load(f)
+    return {}
+
+def get_preference(key: str, default: Any = None) -> Any:
+    """Get a single preference from the JSON file."""
+    prefs = load_preferences()
+    return prefs.get(key, default)
+
+class AvatarToolkitPreferences(AddonPreferences):
+    bl_idname = __package__.rsplit('.', 1)[0]
+
+    def draw(self, context):
+        layout = self.layout
+        layout.label(text="Preferences are managed internally.")
+        # You can add more UI elements here if needed
+
+def get_addon_preferences(context):
+    return context.preferences.addons[AvatarToolkitPreferences.bl_idname].preferences
+
+# Initialize preferences if the file doesn't exist
+if not os.path.exists(PREFERENCES_FILE):
+    save_preference("language", 0)  # Set default language to 0 (auto)
\ No newline at end of file
diff --git a/core/export_resonite.py b/core/export_resonite.py
index 5603773..4cb73fe 100644
--- a/core/export_resonite.py
+++ b/core/export_resonite.py
@@ -5,13 +5,14 @@ from .common import get_armature
 from bpy.types import Object, ShapeKey, Mesh, Context, Operator
 from functools import lru_cache
 from ..core.register import register_wrap
+from ..functions.translations import t
 
 
 @register_wrap
 class ExportResonite(Operator):
     bl_idname = 'avatar_toolkit.export_resonite'
-    bl_label = "Export to Resonite"
-    bl_description = "Export a GLB with all animations and materials. For animation data see: "
+    bl_label = t("Export.resonite.label")
+    bl_description = t("Export.resonite.desc")
     bl_options = {'REGISTER', 'UNDO'}
     filepath: bpy.props.StringProperty()
 
diff --git a/core/importer.py b/core/importer.py
new file mode 100644
index 0000000..e29ca11
--- /dev/null
+++ b/core/importer.py
@@ -0,0 +1,17 @@
+import bpy
+
+# Importers which don't need much code should be added here, however if a importer needs alot of code
+# Like the PMX and PMD importers, they should be added to their own files.
+
+
+# FBX Importer settings borrowed form Cat's Blender Plugin
+def import_fbx(filepath):
+    try:
+        bpy.ops.import_scene.fbx(
+            filepath=filepath,
+            automatic_bone_orientation=False,
+            use_prepost_rot=False,
+            use_anim=False
+        )
+    except (TypeError, ValueError) as e:
+        print(f"Error importing FBX: {str(e)}")
diff --git a/core/pmd/import_pmd.py b/core/pmd/import_pmd.py
deleted file mode 100644
index d23f4a9..0000000
--- a/core/pmd/import_pmd.py
+++ /dev/null
@@ -1,224 +0,0 @@
-import bpy
-import struct
-import mathutils
-
-def read_pmd_header(file):
-    # Read PMD header information
-    magic = file.read(3)
-    if magic != b'Pmd':
-        raise ValueError("Invalid PMD file")
-    
-    version = struct.unpack('<f', file.read(4))[0]
-    
-    # Read additional header fields
-    model_name = file.read(20).decode('shift-jis').rstrip('\0')
-    comment = file.read(256).decode('shift-jis').rstrip('\0')
-    
-    return version, model_name, comment
-
-def read_pmd_vertex(file):
-    # Read PMD vertex information
-    position = struct.unpack('<3f', file.read(12))
-    normal = struct.unpack('<3f', file.read(12))
-    uv = struct.unpack('<2f', file.read(8))
-    bone_indices = list(struct.unpack('<2H', file.read(4)))
-    bone_weights = struct.unpack('<b', file.read(1))[0] / 100
-    edge_flag = struct.unpack('<b', file.read(1))[0]
-    
-    return position, normal, uv, bone_indices, bone_weights, edge_flag
-
-def read_pmd_material(file):
-    # Read PMD material information
-    diffuse_color = struct.unpack('<4f', file.read(16))
-    specular_color = struct.unpack('<3f', file.read(12))
-    specular_intensity = struct.unpack('<f', file.read(4))[0]
-    ambient_color = struct.unpack('<3f', file.read(12))
-    toon_index = struct.unpack('<b', file.read(1))[0]
-    edge_flag = struct.unpack('<b', file.read(1))[0]
-    vertex_count = struct.unpack('<i', file.read(4))[0]
-    texture_file_name = file.read(20).decode('shift-jis').rstrip('\0')
-    
-    return diffuse_color, specular_color, specular_intensity, ambient_color, toon_index, edge_flag, vertex_count, texture_file_name
-
-def read_pmd_bone(file):
-    # Read PMD bone information
-    bone_name = file.read(20).decode('shift-jis').rstrip('\0')
-    parent_bone_index = struct.unpack('<h', file.read(2))[0]
-    tail_pos_bone_index = struct.unpack('<h', file.read(2))[0]
-    bone_type = struct.unpack('<b', file.read(1))[0]
-    ik_parent_bone_index = struct.unpack('<h', file.read(2))[0]
-    bone_head_pos = struct.unpack('<3f', file.read(12))
-    
-    return bone_name, parent_bone_index, tail_pos_bone_index, bone_type, ik_parent_bone_index, bone_head_pos
-
-def read_pmd_ik(file):
-    # Read PMD IK information
-    ik_bone_index = struct.unpack('<h', file.read(2))[0]
-    ik_target_bone_index = struct.unpack('<h', file.read(2))[0]
-    ik_chain_length = struct.unpack('<b', file.read(1))[0]
-    iterations = struct.unpack('<h', file.read(2))[0]
-    limit_angle = struct.unpack('<f', file.read(4))[0]
-    
-    ik_child_bone_indices = []
-    for _ in range(ik_chain_length):
-        ik_child_bone_index = struct.unpack('<h', file.read(2))[0]
-        ik_child_bone_indices.append(ik_child_bone_index)
-    
-    return ik_bone_index, ik_target_bone_index, ik_chain_length, iterations, limit_angle, ik_child_bone_indices
-
-def read_pmd_morph(file):
-    # Read PMD morph information
-    morph_name = file.read(20).decode('shift-jis').rstrip('\0')
-    morph_vertex_count = struct.unpack('<i', file.read(4))[0]
-    morph_type = struct.unpack('<b', file.read(1))[0]
-    
-    morph_vertices = []
-    for _ in range(morph_vertex_count):
-        morph_vertex_index = struct.unpack('<i', file.read(4))[0]
-        morph_vertex_pos = struct.unpack('<3f', file.read(12))
-        morph_vertices.append((morph_vertex_index, morph_vertex_pos))
-    
-    return morph_name, morph_vertex_count, morph_type, morph_vertices
-
-def import_pmd(filepath):
-    try:
-        with open(filepath, 'rb') as file:
-            version, model_name, comment = read_pmd_header(file)
-            
-            # Read vertices
-            vertex_count = struct.unpack('<i', file.read(4))[0]
-            vertices = []
-            for _ in range(vertex_count):
-                position, normal, uv, bone_indices, bone_weights, edge_flag = read_pmd_vertex(file)
-                vertices.append((position, normal, uv, bone_indices, bone_weights, edge_flag))
-            
-            # Read faces
-            face_count = struct.unpack('<i', file.read(4))[0]
-            faces = []
-            for _ in range(face_count // 3):
-                face_indices = struct.unpack('<3i', file.read(12))
-                faces.append(face_indices)
-            
-            # Read materials
-            material_count = struct.unpack('<i', file.read(4))[0]
-            materials = []
-            for _ in range(material_count):
-                diffuse_color, specular_color, specular_intensity, ambient_color, toon_index, edge_flag, vertex_count, texture_file_name = read_pmd_material(file)
-                materials.append((diffuse_color, specular_color, specular_intensity, ambient_color, toon_index, edge_flag, vertex_count, texture_file_name))
-            
-            # Read bones
-            bone_count = struct.unpack('<h', file.read(2))[0]
-            bones = []
-            for _ in range(bone_count):
-                bone_name, parent_bone_index, tail_pos_bone_index, bone_type, ik_parent_bone_index, bone_head_pos = read_pmd_bone(file)
-                bones.append((bone_name, parent_bone_index, tail_pos_bone_index, bone_type, ik_parent_bone_index, bone_head_pos))
-            
-            # Read IKs
-            ik_count = struct.unpack('<h', file.read(2))[0]
-            iks = []
-            for _ in range(ik_count):
-                ik_bone_index, ik_target_bone_index, ik_chain_length, iterations, limit_angle, ik_child_bone_indices = read_pmd_ik(file)
-                iks.append((ik_bone_index, ik_target_bone_index, ik_chain_length, iterations, limit_angle, ik_child_bone_indices))
-            
-            # Read morphs
-            morph_count = struct.unpack('<h', file.read(2))[0]
-            morphs = []
-            for _ in range(morph_count):
-                morph_name, morph_vertex_count, morph_type, morph_vertices = read_pmd_morph(file)
-                morphs.append((morph_name, morph_vertex_count, morph_type, morph_vertices))
-            
-            # Create Blender objects and assign PMD data
-            mesh = bpy.data.meshes.new(model_name)
-            mesh.from_pydata([v[0] for v in vertices], [], faces)
-            mesh.update()
-            
-            obj = bpy.data.objects.new(model_name, mesh)
-            bpy.context.collection.objects.link(obj)
-            
-            # Assign vertex normals
-            for i, vertex in enumerate(vertices):
-                mesh.vertices[i].normal = vertex[1]
-            
-            # Assign UV coordinates
-            uv_layer = mesh.uv_layers.new()
-            for i, vertex in enumerate(vertices):
-                uv_layer.data[i].uv = vertex[2]
-            
-            # Assign materials
-            for material_data in materials:
-                material = bpy.data.materials.new(f"Material_{len(mesh.materials)}")
-                material.diffuse_color = material_data[0]
-                material.specular_color = material_data[1]
-                material.specular_intensity = material_data[2]
-                material.ambient = material_data[3]
-                # Set other material properties based on the PMD data
-                
-                mesh.materials.append(material)
-            
-            # Create armature and assign bones
-            armature = bpy.data.armatures.new(model_name + "_Armature")
-            armature_obj = bpy.data.objects.new(model_name + "_Armature", armature)
-            bpy.context.collection.objects.link(armature_obj)
-            
-            bpy.context.view_layer.objects.active = armature_obj
-            bpy.ops.object.mode_set(mode='EDIT')
-            
-            for bone_data in bones:
-                bone = armature.edit_bones.new(bone_data[0])
-                bone.head = bone_data[5]
-                
-                if bone_data[1] != -1:
-                    parent_bone = armature.edit_bones[bone_data[1]]
-                    bone.parent = parent_bone
-                    bone.tail = parent_bone.head
-                else:
-                    bone.tail = bone.head + mathutils.Vector((0, 0.1, 0))
-                
-                # Set other bone properties based on the PMD data
-            
-            bpy.ops.object.mode_set(mode='OBJECT')
-            
-            # Assign bone weights to the mesh
-            for i, vertex in enumerate(vertices):
-                for j in range(2):
-                    if vertex[3][j] != 65535:
-                        bone_name = bones[vertex[3][j]][0]
-                        weight = vertex[4] if j == 0 else 1 - vertex[4]
-                        
-                        vertex_group = obj.vertex_groups.get(bone_name)
-                        if not vertex_group:
-                            vertex_group = obj.vertex_groups.new(name=bone_name)
-                        
-                        vertex_group.add([i], weight, 'REPLACE')
-            
-            # Assign IK constraints to bones
-            for ik_data in iks:
-                ik_bone = armature.bones[bones[ik_data[0]][0]]
-                ik_target_bone = armature.bones[bones[ik_data[1]][0]]
-                
-                ik_constraint = ik_bone.constraints.new('IK')
-                ik_constraint.target = armature_obj
-                ik_constraint.subtarget = ik_target_bone.name
-                ik_constraint.chain_count = ik_data[2]
-                ik_constraint.iterations = ik_data[3]
-                ik_constraint.limit_mode = 'LIMITDIST_INSIDE'
-                ik_constraint.limit_mode_max_x = ik_data[4]
-            
-            # Assign morphs to the mesh
-            for morph_data in morphs:
-                morph_name = morph_data[0]
-                morph_type = morph_data[2]
-                
-                if morph_type == 0:  # Vertex morph
-                    shape_key = obj.shape_key_add(name=morph_name)
-                    for vertex_data in morph_data[3]:
-                        vertex_index = vertex_data[0]
-                        vertex_offset = vertex_data[1]
-                        shape_key.data[vertex_index].co += mathutils.Vector(vertex_offset)
-            
-            print(f"Successfully imported PMD file: {filepath}")
-            print(f"Model Name: {model_name}")
-            print(f"Comment: {comment}")
-    except Exception as e:
-        print(f"Error importing PMD file: {filepath}")
-        print(f"Error details: {str(e)}")
diff --git a/core/pmx/import_pmx.py b/core/pmx/import_pmx.py
deleted file mode 100644
index 6a5bddc..0000000
--- a/core/pmx/import_pmx.py
+++ /dev/null
@@ -1,307 +0,0 @@
-import bpy
-import struct
-
-def read_pmx_header(file):
-    # Read PMX header information
-    magic = file.read(4)  # Read magic bytes (should be "PMX ")
-    if magic != b'PMX ':
-        raise ValueError("Invalid PMX file")
-    
-    version = struct.unpack('<f', file.read(4))[0]  # Read version number (float, 4 bytes)
-    
-    # Read additional header fields
-    data_size = struct.unpack('<i', file.read(4))[0]  # Read size of remaining header data (int, 4 bytes)
-    encoding = struct.unpack('<b', file.read(1))[0]  # Read encoding type (byte, 1 byte)
-    additional_uvs = struct.unpack('<b', file.read(1))[0]  # Read number of additional UV layers (byte, 1 byte)
-    vertex_index_size = struct.unpack('<b', file.read(1))[0]  # Read vertex index size (byte, 1 byte)
-    texture_index_size = struct.unpack('<b', file.read(1))[0]  # Read texture index size (byte, 1 byte)
-    material_index_size = struct.unpack('<b', file.read(1))[0]  # Read material index size (byte, 1 byte)
-    bone_index_size = struct.unpack('<b', file.read(1))[0]  # Read bone index size (byte, 1 byte)
-    morph_index_size = struct.unpack('<b', file.read(1))[0]  # Read morph index size (byte, 1 byte)
-    rigid_body_index_size = struct.unpack('<b', file.read(1))[0]  # Read rigid body index size (byte, 1 byte)
-    
-    # Read model name and comments
-    model_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read model name (string, variable length)
-    model_english_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read model English name (string, variable length)
-    model_comment = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read model comment (string, variable length)
-    model_english_comment = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read model English comment (string, variable length)
-    
-    return version, encoding, additional_uvs, vertex_index_size, texture_index_size, material_index_size, bone_index_size, morph_index_size, rigid_body_index_size, model_name, model_english_name, model_comment, model_english_comment
-
-def read_vertex(file, vertex_index_size):
-    position = struct.unpack('<3f', file.read(12))  # Read vertex position (float, 3 * 4 bytes)
-    normal = struct.unpack('<3f', file.read(12))  # Read vertex normal (float, 3 * 4 bytes)
-    uv = struct.unpack('<2f', file.read(8))  # Read vertex UV coordinates (float, 2 * 4 bytes)
-    
-    if vertex_index_size == 1:
-        bone_indices = list(struct.unpack('<4B', file.read(4)))  # Read bone indices (byte, 4 * 1 byte)
-    elif vertex_index_size == 2:
-        bone_indices = list(struct.unpack('<4H', file.read(8)))  # Read bone indices (short, 4 * 2 bytes)
-    else:
-        bone_indices = list(struct.unpack('<4I', file.read(16)))  # Read bone indices (int, 4 * 4 bytes)
-    
-    bone_weights = list(struct.unpack('<4f', file.read(16)))  # Read bone weights (float, 4 * 4 bytes)
-    edge_scale = struct.unpack('<f', file.read(4))[0]  # Read edge scale (float, 4 bytes)
-    
-    return position, normal, uv, bone_indices, bone_weights, edge_scale
-
-def read_material(file, texture_index_size):
-    material_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read material name (string, variable length)
-    material_english_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read material English name (string, variable length)
-    
-    diffuse_color = struct.unpack('<4f', file.read(16))  # Read diffuse color (float, 4 * 4 bytes)
-    specular_color = struct.unpack('<3f', file.read(12))  # Read specular color (float, 3 * 4 bytes)
-    specular_strength = struct.unpack('<f', file.read(4))[0]  # Read specular strength (float, 4 bytes)
-    ambient_color = struct.unpack('<3f', file.read(12))  # Read ambient color (float, 3 * 4 bytes)
-    
-    flag = struct.unpack('<b', file.read(1))[0]  # Read flag (byte, 1 byte)
-    edge_color = struct.unpack('<4f', file.read(16))  # Read edge color (float, 4 * 4 bytes)
-    edge_size = struct.unpack('<f', file.read(4))[0]  # Read edge size (float, 4 bytes)
-    texture_index = struct.unpack(f'<{texture_index_size}B', file.read(texture_index_size))[0]  # Read texture index (byte, texture_index_size bytes)
-    sphere_texture_index = struct.unpack(f'<{texture_index_size}B', file.read(texture_index_size))[0]  # Read sphere texture index (byte, texture_index_size bytes)
-    sphere_mode = struct.unpack('<b', file.read(1))[0]  # Read sphere mode (byte, 1 byte)
-    toon_sharing_flag = struct.unpack('<b', file.read(1))[0]  # Read toon sharing flag (byte, 1 byte)
-    
-    if toon_sharing_flag == 0:
-        toon_texture_index = struct.unpack(f'<{texture_index_size}B', file.read(texture_index_size))[0]  # Read toon texture index (byte, texture_index_size bytes)
-    else:
-        toon_texture_index = struct.unpack('<b', file.read(1))[0]  # Read shared toon texture index (byte, 1 byte)
-    
-    comment = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read material comment (string, variable length)
-    
-    return material_name, material_english_name, diffuse_color, specular_color, specular_strength, ambient_color, flag, edge_color, edge_size, texture_index, sphere_texture_index, sphere_mode, toon_sharing_flag, toon_texture_index, comment
-
-def read_bone(file, bone_index_size):
-    bone_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read bone name (string, variable length)
-    bone_english_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read bone English name (string, variable length)
-    
-    position = struct.unpack('<3f', file.read(12))  # Read bone position (float, 3 * 4 bytes)
-    parent_bone_index = struct.unpack(f'<{bone_index_size}B', file.read(bone_index_size))[0]  # Read parent bone index (byte, bone_index_size bytes)
-    layer = struct.unpack('<i', file.read(4))[0]  # Read bone layer (int, 4 bytes)
-    flag = struct.unpack('<H', file.read(2))[0]  # Read bone flag (short, 2 bytes)
-    
-    if flag & 0x0001:
-        tail_position = struct.unpack('<3f', file.read(12))  # Read bone tail position (float, 3 * 4 bytes)
-    else:
-        tail_index = struct.unpack(f'<{bone_index_size}B', file.read(bone_index_size))[0]  # Read bone tail index (byte, bone_index_size bytes)
-    
-    if flag & 0x0100 or flag & 0x0200:
-        inherit_bone_parent_index = struct.unpack(f'<{bone_index_size}B', file.read(bone_index_size))[0]  # Read inherit bone parent index (byte, bone_index_size bytes)
-        inherit_bone_parent_influence = struct.unpack('<f', file.read(4))[0]  # Read inherit bone parent influence (float, 4 bytes)
-    
-    if flag & 0x0400:
-        fixed_axis = struct.unpack('<3f', file.read(12))  # Read fixed axis (float, 3 * 4 bytes)
-    
-    if flag & 0x0800:
-        local_x_vector = struct.unpack('<3f', file.read(12))  # Read local X-axis vector (float, 3 * 4 bytes)
-        local_z_vector = struct.unpack('<3f', file.read(12))  # Read local Z-axis vector (float, 3 * 4 bytes)
-    
-    if flag & 0x2000:
-        external_key = struct.unpack('<i', file.read(4))[0]  # Read external key (int, 4 bytes)
-    
-    if flag & 0x0020:
-        ik_target_bone_index = struct.unpack(f'<{bone_index_size}B', file.read(bone_index_size))[0]  # Read IK target bone index (byte, bone_index_size bytes)
-        ik_loop_count = struct.unpack('<i', file.read(4))[0]  # Read IK loop count (int, 4 bytes)
-        ik_limit_radian = struct.unpack('<f', file.read(4))[0]  # Read IK limit angle (float, 4 bytes)
-        ik_link_count = struct.unpack('<i', file.read(4))[0]  # Read IK link count (int, 4 bytes)
-        
-        ik_links = []
-        for _ in range(ik_link_count):
-            ik_link_bone_index = struct.unpack(f'<{bone_index_size}B', file.read(bone_index_size))[0]  # Read IK link bone index (byte, bone_index_size bytes)
-            ik_link_limit_min = struct.unpack('<3f', file.read(12))  # Read IK link limit minimum (float, 3 * 4 bytes)
-            ik_link_limit_max = struct.unpack('<3f', file.read(12))  # Read IK link limit maximum (float, 3 * 4 bytes)
-            ik_links.append((ik_link_bone_index, ik_link_limit_min, ik_link_limit_max))
-    
-    return bone_name, bone_english_name, position, parent_bone_index, layer, flag, tail_position, inherit_bone_parent_index, inherit_bone_parent_influence, fixed_axis, local_x_vector, local_z_vector, external_key, ik_target_bone_index, ik_loop_count, ik_limit_radian, ik_links
-
-def read_morph(file, morph_index_size):
-    morph_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read morph name (string, variable length)
-    morph_english_name = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read morph English name (string, variable length)
-    
-    panel = struct.unpack('<b', file.read(1))[0]  # Read panel type (byte, 1 byte)
-    morph_type = struct.unpack('<b', file.read(1))[0]  # Read morph type (byte, 1 byte)
-    offset_size = struct.unpack('<i', file.read(4))[0]  # Read offset size (int, 4 bytes)
-    
-    morph_data = []
-    for _ in range(offset_size):
-        if morph_type == 0:  # Group
-            morph_index = struct.unpack(f'<{morph_index_size}B', file.read(morph_index_size))[0]  # Read morph index (byte, morph_index_size bytes)
-            morph_value = struct.unpack('<f', file.read(4))[0]  # Read morph value (float, 4 bytes)
-            morph_data.append((morph_index, morph_value))
-        elif morph_type == 1:  # Vertex
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            position_offset = struct.unpack('<3f', file.read(12))  # Read position offset (float, 3 * 4 bytes)
-            morph_data.append((vertex_index, position_offset))
-        elif morph_type == 2:  # Bone
-            bone_index = struct.unpack(f'<{morph_index_size}B', file.read(morph_index_size))[0]  # Read bone index (byte, morph_index_size bytes)
-            position_offset = struct.unpack('<3f', file.read(12))  # Read position offset (float, 3 * 4 bytes)
-            rotation_offset = struct.unpack('<4f', file.read(16))  # Read rotation offset (float, 4 * 4 bytes)
-            morph_data.append((bone_index, position_offset, rotation_offset))
-        elif morph_type == 3:  # UV
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            uv_offset = struct.unpack('<4f', file.read(16))  # Read UV offset (float, 4 * 4 bytes)
-            morph_data.append((vertex_index, uv_offset))
-        elif morph_type == 4:  # UV extended1
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            uv_offset = struct.unpack('<4f', file.read(16))  # Read UV offset (float, 4 * 4 bytes)
-            morph_data.append((vertex_index, uv_offset))
-
-
-        elif morph_type == 5:  # UV extended2
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            uv_offset = struct.unpack('<4f', file.read(16))  # Read UV offset (float, 4 * 4 bytes)
-            morph_data.append((vertex_index, uv_offset))
-        elif morph_type == 6:  # UV extended3
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            uv_offset = struct.unpack('<4f', file.read(16))  # Read UV offset (float, 4 * 4 bytes)
-            morph_data.append((vertex_index, uv_offset))
-        elif morph_type == 7:  # UV extended4
-            vertex_index = struct.unpack('<i', file.read(4))[0]  # Read vertex index (int, 4 bytes)
-            uv_offset = struct.unpack('<4f', file.read(16))  # Read UV offset (float, 4 * 4 bytes)
-            morph_data.append((vertex_index, uv_offset))
-        elif morph_type == 8:  # Material
-            material_index = struct.unpack('<i', file.read(4))[0]  # Read material index (int, 4 bytes)
-            offset_type = struct.unpack('<b', file.read(1))[0]  # Read offset type (byte, 1 byte)
-            diffuse_offset = struct.unpack('<4f', file.read(16))  # Read diffuse color offset (float, 4 * 4 bytes)
-            specular_offset = struct.unpack('<3f', file.read(12))  # Read specular color offset (float, 3 * 4 bytes)
-            specular_factor_offset = struct.unpack('<f', file.read(4))[0]  # Read specular factor offset (float, 4 bytes)
-            ambient_offset = struct.unpack('<3f', file.read(12))  # Read ambient color offset (float, 3 * 4 bytes)
-            edge_color_offset = struct.unpack('<4f', file.read(16))  # Read edge color offset (float, 4 * 4 bytes)
-            edge_size_offset = struct.unpack('<f', file.read(4))[0]  # Read edge size offset (float, 4 bytes)
-            texture_factor_offset = struct.unpack('<4f', file.read(16))  # Read texture factor offset (float, 4 * 4 bytes)
-            sphere_texture_factor_offset = struct.unpack('<4f', file.read(16))  # Read sphere texture factor offset (float, 4 * 4 bytes)
-            toon_texture_factor_offset = struct.unpack('<4f', file.read(16))  # Read toon texture factor offset (float, 4 * 4 bytes)
-            morph_data.append((material_index, offset_type, diffuse_offset, specular_offset, specular_factor_offset, ambient_offset, edge_color_offset, edge_size_offset, texture_factor_offset, sphere_texture_factor_offset, toon_texture_factor_offset))
-    
-    return morph_name, morph_english_name, panel, morph_type, morph_data
-
-def import_pmx(filepath):
-    try:
-        with open(filepath, 'rb') as file:
-            version, encoding, additional_uvs, vertex_index_size, texture_index_size, material_index_size, bone_index_size, morph_index_size, rigid_body_index_size, model_name, model_english_name, model_comment, model_english_comment = read_pmx_header(file)
-            
-            # Read vertices
-            vertex_count = struct.unpack('<i', file.read(4))[0]  # Read vertex count (int, 4 bytes)
-            vertices = []
-            for _ in range(vertex_count):
-                position, normal, uv, bone_indices, bone_weights, edge_scale = read_vertex(file, vertex_index_size)
-                vertices.append((position, normal, uv, bone_indices, bone_weights, edge_scale))
-            
-            # Read faces
-            face_count = struct.unpack('<i', file.read(4))[0]  # Read face count (int, 4 bytes)
-            faces = []
-            for _ in range(face_count // 3):
-                face_indices = struct.unpack('<3i', file.read(12))  # Read face indices (int, 3 * 4 bytes)
-                faces.append(face_indices)
-            
-            # Read textures
-            texture_count = struct.unpack('<i', file.read(4))[0]  # Read texture count (int, 4 bytes)
-            textures = []
-            for _ in range(texture_count):
-                texture_path = str(file.read(struct.unpack('<i', file.read(4))[0]), 'utf-16-le', errors='replace')  # Read texture path (string, variable length)
-                textures.append(texture_path)
-            
-            # Read materials
-            material_count = struct.unpack('<i', file.read(4))[0]  # Read material count (int, 4 bytes)
-            materials = []
-            for _ in range(material_count):
-                material_name, material_english_name, diffuse_color, specular_color, specular_strength, ambient_color, flag, edge_color, edge_size, texture_index, sphere_texture_index, sphere_mode, toon_sharing_flag, toon_texture_index, comment = read_material(file, texture_index_size)
-                materials.append((material_name, material_english_name, diffuse_color, specular_color, specular_strength, ambient_color, flag, edge_color, edge_size, texture_index, sphere_texture_index, sphere_mode, toon_sharing_flag, toon_texture_index, comment))
-            
-        # Read bones
-        bone_count = struct.unpack('<i', file.read(4))[0]  # Read bone count (int, 4 bytes)
-        bones = []
-        for _ in range(bone_count):
-            bone_name, bone_english_name, position, parent_bone_index, layer, flag, tail_position, inherit_bone_parent_index, inherit_bone_parent_influence, fixed_axis, local_x_vector, local_z_vector, external_key, ik_target_bone_index, ik_loop_count, ik_limit_radian, ik_links = read_bone(file, bone_index_size)
-            bones.append((bone_name, bone_english_name, position, parent_bone_index, layer, flag, tail_position, inherit_bone_parent_index, inherit_bone_parent_influence, fixed_axis, local_x_vector, local_z_vector, external_key, ik_target_bone_index, ik_loop_count, ik_limit_radian, ik_links))
-        
-        # Read morphs
-        morph_count = struct.unpack('<i', file.read(4))[0]  # Read morph count (int, 4 bytes)
-        morphs = []
-        for _ in range(morph_count):
-            morph_name, morph_english_name, panel, morph_type, morph_data = read_morph(file, morph_index_size)
-            morphs.append((morph_name, morph_english_name, panel, morph_type, morph_data))
-        
-        # Create Blender objects and assign PMX data
-        mesh = bpy.data.meshes.new(model_name)
-        mesh.from_pydata([v[0] for v in vertices], [], faces)
-        mesh.update()
-        
-        obj = bpy.data.objects.new(model_name, mesh)
-        bpy.context.collection.objects.link(obj)
-        
-        # Assign vertex normals
-        for i, vertex in enumerate(vertices):
-            mesh.vertices[i].normal = vertex[1]
-        
-        # Assign UV coordinates
-        uv_layer = mesh.uv_layers.new()
-        for i, vertex in enumerate(vertices):
-            uv_layer.data[i].uv = vertex[2]
-        
-        # Assign materials
-        for material_data in materials:
-            material = bpy.data.materials.new(material_data[0])
-            material.diffuse_color = material_data[2]
-            material.specular_color = material_data[3]
-            material.specular_intensity = material_data[4]
-            material.ambient = material_data[5]
-            # Set other material properties based on the PMX data
-            
-            mesh.materials.append(material)
-        
-        # Create armature and assign bones
-        armature = bpy.data.armatures.new(model_name + "_Armature")
-        armature_obj = bpy.data.objects.new(model_name + "_Armature", armature)
-        bpy.context.collection.objects.link(armature_obj)
-        
-        bpy.context.view_layer.objects.active = armature_obj
-        bpy.ops.object.mode_set(mode='EDIT')
-        
-        for bone_data in bones:
-            bone = armature.edit_bones.new(bone_data[0])
-            bone.head = bone_data[2]
-            bone.tail = bone_data[6]
-            
-            if bone_data[3] != -1:
-                parent_bone = armature.edit_bones[bone_data[3]]
-                bone.parent = parent_bone
-            
-            # Set other bone properties based on the PMX data
-        
-        bpy.ops.object.mode_set(mode='OBJECT')
-        
-        # Assign bone weights to the mesh
-        for i, vertex in enumerate(vertices):
-            for j in range(4):
-                if vertex[3][j] != -1:
-                    bone_name = bones[vertex[3][j]][0]
-                    weight = vertex[4][j]
-                    
-                    vertex_group = obj.vertex_groups.get(bone_name)
-                    if not vertex_group:
-                        vertex_group = obj.vertex_groups.new(name=bone_name)
-                    
-                    vertex_group.add([i], weight, 'REPLACE')
-        
-        # Assign morphs to the mesh
-        for morph_data in morphs:
-            morph_name = morph_data[0]
-            morph_type = morph_data[3]
-            
-            if morph_type == 1:  # Vertex morph
-                shape_key = obj.shape_key_add(name=morph_name)
-                for offset_data in morph_data[4]:
-                    vertex_index = offset_data[0]
-                    offset = offset_data[1]
-                    shape_key.data[vertex_index].co += mathutils.Vector(offset)
-            # Handle other morph types based on the PMX specification
-        
-            print(f"Successfully imported PMX file: {filepath}")
-            print(f"Model Name: {model_name}")
-            print(f"Model English Name: {model_english_name}")
-            print(f"Model Comment: {model_comment}")
-            print(f"Model English Comment: {model_english_comment}")
-    except Exception as e:
-        print(f"Error importing PMX file: {filepath}")
-        print(f"Error details: {str(e)}")
\ No newline at end of file
diff --git a/core/properties.py b/core/properties.py
new file mode 100644
index 0000000..9841212
--- /dev/null
+++ b/core/properties.py
@@ -0,0 +1,23 @@
+import bpy
+from ..functions.translations import t, get_languages_list, update_language
+from ..core.addon_preferences import get_preference
+
+def register():
+    default_language = get_preference("language", 0)
+    
+    bpy.types.Scene.avatar_toolkit_language = bpy.props.EnumProperty(
+        name=t("Settings.language.label", "Language"),
+        description=t("Settings.language.desc", "Select the language for the addon"),
+        items=get_languages_list,
+        default=default_language,
+        update=update_language
+    )
+    
+    bpy.types.Scene.avatar_toolkit_language_changed = bpy.props.BoolProperty(default=False)
+
+def unregister():
+    if hasattr(bpy.types.Scene, "avatar_toolkit_language"):
+        del bpy.types.Scene.avatar_toolkit_language
+        
+    if hasattr(bpy.types.Scene, "avatar_toolkit_language_changed"):
+        del bpy.types.Scene.avatar_toolkit_language_changed
diff --git a/core/register.py b/core/register.py
index 0d91a8a..5745870 100644
--- a/core/register.py
+++ b/core/register.py
@@ -1,10 +1,13 @@
 import bpy
 import typing
+from typing import List, Type
 
 # List to store the classes to register
 __bl_classes = []
 # List to store the ordered classes for registration
 __bl_ordered_classes = []
+# List to store props to register
+__bl_props = []
 
 def register_wrap(cls):
     # Check if the class has a 'bl_rna' attribute (indicating it's a Blender class)
@@ -13,6 +16,20 @@ def register_wrap(cls):
         __bl_classes.append(cls)
     return cls
 
+# Register all properties
+def register_property(prop):
+    __bl_props.append(prop)
+
+def register_properties():
+    for prop in __bl_props:
+        if isinstance(prop[2], bpy.props._PropertyDeferred):
+            setattr(prop[0], prop[1], prop[2])
+        else:
+            prop() 
+            
+def unregister_properties():
+    for prop in reversed(__bl_props):
+        delattr(prop[0], prop[1])
 
 #- @989onan had to add this from Cats. This is extremely important else you will be screamed at by register order issues!
 # Find order to register to solve dependencies
@@ -96,4 +113,3 @@ def toposort(deps_dict):
         deps_dict = {value : deps_dict[value] - sorted_values for value in unsorted}
     
     return sorted_list
-
diff --git a/functions/combine_materials.py b/functions/combine_materials.py
index 4eaa93d..d2fa56a 100644
--- a/functions/combine_materials.py
+++ b/functions/combine_materials.py
@@ -4,6 +4,7 @@ from typing import List, Tuple, Optional
 from bpy.types import Material, Operator, Context, Object
 from ..core.common import clean_material_names
 from ..core.register import register_wrap
+from ..functions.translations import t
 
 def textures_match(tex1: bpy.types.ImageTexture, tex2: bpy.types.ImageTexture) -> bool:
     return tex1.image == tex2.image and tex1.extension == tex2.extension
@@ -58,8 +59,8 @@ def report_consolidated(self: Operator, num_combined: int) -> None:
 @register_wrap
 class CombineMaterials(Operator):
     bl_idname = "avatar_toolkit.combine_materials"
-    bl_label = "Combine Materials"
-    bl_description = "Combine similar materials to optimize the model"
+    bl_label = t("Optimization.combine_materials.label")
+    bl_description = t("Optimization.combine_materials.desc")
     bl_options = {'REGISTER', 'UNDO'}
 
     @classmethod
diff --git a/functions/join_meshes.py b/functions/join_meshes.py
index b2edfef..195870e 100644
--- a/functions/join_meshes.py
+++ b/functions/join_meshes.py
@@ -3,12 +3,13 @@ from typing import List, Optional
 from bpy.types import Operator, Context, Object
 from ..core.register import register_wrap
 from ..core.common import fix_uv_coordinates
+from ..functions.translations import t
 
 @register_wrap
 class JoinAllMeshes(Operator):
     bl_idname = "avatar_toolkit.join_all_meshes"
-    bl_label = "Join All Meshes"
-    bl_description = "Join all meshes in the scene"
+    bl_label = t("Optimization.join_all_meshes.label")
+    bl_description = t("Optimization.join_all_meshes.desc")
     bl_options = {'REGISTER', 'UNDO'}
 
     @classmethod
@@ -45,8 +46,8 @@ class JoinAllMeshes(Operator):
 @register_wrap
 class JoinSelectedMeshes(Operator):
     bl_idname = "avatar_toolkit.join_selected_meshes"
-    bl_label = "Join Selected Meshes"
-    bl_description = "Join selected meshes"
+    bl_label = t("Optimization.join_selected_meshes.label")
+    bl_description = t("Optimization.join_selected_meshes.desc")
     bl_options = {'REGISTER', 'UNDO'}
 
     @classmethod
diff --git a/functions/resonite_functions.py b/functions/resonite_functions.py
index adaeead..74a80be 100644
--- a/functions/resonite_functions.py
+++ b/functions/resonite_functions.py
@@ -5,12 +5,13 @@ import re
 from bpy.types import Operator, Context, Object
 from ..core.dictionaries import bone_names
 from ..core.common import get_armature, simplify_bonename
+from ..functions.translations import t
 
 @register_wrap
 class ConvertToResonite(Operator):
     bl_idname = 'avatar_toolkit.convert_to_resonite'
-    bl_label = "Convert to Resonite" #t('Tools.convert_to_resonite.label')
-    bl_description = "Converts bone names on a model to names compatable with Resonite" #t('Tools.convert_to_resonite.desc')
+    bl_label = t('Tools.convert_to_resonite.label')
+    bl_description = t('Tools.convert_to_resonite.desc')
     bl_options = {'REGISTER', 'UNDO'}
 
     @classmethod
diff --git a/functions/translations.py b/functions/translations.py
new file mode 100644
index 0000000..9e2a742
--- /dev/null
+++ b/functions/translations.py
@@ -0,0 +1,97 @@
+import os
+import json
+import bpy
+from bpy.app.translations import locale
+from typing import Dict, List, Tuple
+from ..core.addon_preferences import save_preference, get_preference
+
+# Use __file__ to get the current file's directory
+current_dir = os.path.dirname(os.path.abspath(__file__))
+main_dir = os.path.dirname(current_dir)
+resources_dir = os.path.join(main_dir, "resources")
+translations_dir = os.path.join(resources_dir, "translations")
+
+dictionary: Dict[str, str] = dict()
+languages: List[str] = []
+verbose: bool = True
+
+def load_translations() -> bool:
+    global dictionary, languages
+
+    old_dictionary = dictionary.copy()
+
+    dictionary = dict()
+    languages = ["auto"]
+
+    # Populate languages list
+    for i in os.listdir(translations_dir):
+        lang = i.split(".")[0]
+        if lang != "auto":
+            languages.append(lang)
+
+    language_index = get_preference("language", 0)
+    print(f"Loading translations for language index: {language_index}")  # Debug print
+
+    if language_index == 0:  # "auto"
+        language = bpy.context.preferences.view.language
+    else:
+        try:
+            language = languages[language_index]
+        except IndexError:
+            language = bpy.context.preferences.view.language
+
+    print(f"Selected language: {language}")  # Debug print
+
+    translation_file: str = os.path.join(translations_dir, language + ".json")
+    if os.path.exists(translation_file):
+        with open(translation_file, 'r', encoding='utf-8') as file:
+            dictionary = json.load(file)["messages"]
+        print(f"Loaded translations: {dictionary}")  # Debug print
+    else:
+        custom_language: str = language.split("_")[0]
+        custom_translation_file: str = os.path.join(translations_dir, custom_language + ".json")
+        if os.path.exists(custom_translation_file):
+            with open(custom_translation_file, 'r', encoding='utf-8') as file:
+                dictionary = json.load(file)["messages"]
+            print(f"Loaded custom translations: {dictionary}")  # Debug print
+        else:
+            print(f"Translation file not found for language: {language}")
+            default_file: str = os.path.join(translations_dir, "en_US.json")
+            if os.path.exists(default_file):
+                with open(default_file, 'r', encoding='utf-8') as file:
+                    dictionary = json.load(file)["messages"]
+                print(f"Loaded default translations: {dictionary}")  # Debug print
+            else:
+                print("Default translation file 'en_US.json' not found.")
+
+    return dictionary != old_dictionary
+
+def t(phrase: str, default: str = None) -> str:
+    output: str = dictionary.get(phrase)
+    if output is None:
+        if verbose:
+            print(f'Warning: Unknown phrase: {phrase}')
+        return default if default is not None else phrase
+    print(f"Translating '{phrase}' to '{output}'")  # Debug print
+    return output
+
+def get_language_display_name(lang: str) -> str:
+    if lang == "auto":
+        return t("Language.auto", "Automatic")
+    return t(f"Language.{lang}", lang)
+
+def get_languages_list(self, context) -> List[Tuple[str, str, str]]:
+    return [(str(i), get_language_display_name(lang), f"Use {lang} language") for i, lang in enumerate(languages)]
+
+def update_language(self, context):
+    print(f"Updating language to: {self.avatar_toolkit_language}")  # Debug print
+    save_preference("language", int(self.avatar_toolkit_language))
+    load_translations()
+    # Set a flag to indicate that a language change has occurred
+    context.scene.avatar_toolkit_language_changed = True
+    # Show popup after language change
+    bpy.ops.avatar_toolkit.translation_restart_popup('INVOKE_DEFAULT')
+
+# Initial load of translations
+print("Performing initial load of translations")  # Debug print
+load_translations()
diff --git a/resources/translations/en_US.json b/resources/translations/en_US.json
new file mode 100644
index 0000000..e5a05f3
--- /dev/null
+++ b/resources/translations/en_US.json
@@ -0,0 +1,42 @@
+{
+  "authors": ["Avatar Toolkit Team"],  
+  "messages": {
+      "Language.auto": "Automatic",
+      "Language.en_US": "English",
+      "Language.ja_JP": "日本語",
+      "Quick_Access.label": "Quick Access",
+      "Quick_Access.import_export.label": "Import/Export",
+      "Quick_Access.options": "Quick Access Options",
+      "Quick_Access.import_menu.label": "Import Menu",
+      "Quick_Access.import": "Import",
+      "Quick_Access.export": "Export",
+      "Quick_Access.import_pmx": "Import PMX",
+      "Quick_Access.import_pmx.desc": "Import MMD PMX Model",
+      "Quick_Access.import_pmd": "Import PMD",
+      "Quick_Access.import_pmd.desc": "Import MMD PMD Model",
+      "Quick_Access.export_menu.label": "Export Menu",
+      "Quick_Access.select_export.label": "Select Export Method",
+      "Quick_Access.select_export_resonite.label": "Resonite",
+      "Export.resonite.label": "Export to Resonite",
+      "Export.resonite.desc": "Export a GLB with all animations and materials. For animation data see:",
+      "Optimization.label": "Optimization",
+      "Optimization.options.label": "Optimization Options",
+      "Optimization.combine_materials.label": "Combine Materials",
+      "Optimization.combine_materials.desc": "Combine similar materials to optimize the model",
+      "Optimization.join_all_meshes.label": "Join All Meshes",
+      "Optimization.join_all_meshes.desc": "Join all meshes into one",
+      "Optimization.join_selected_meshes.label": "Join Selected Mehses",
+      "Optimization.join_selected_meshes.desc": "Join all currntly Selected Mehses into one",
+      "Tools.tools_title.label": "Tools",
+      "Tools.convert_to_resonite.label": "Convert to Resonite",
+      "Tools.convert_to_resonite.desc": "Converts bone names on a model to names compatable with Resonite",
+      "Settings.label": "Settings",
+      "Settings.language.label": "Language",
+      "Settings.language.desc": "Select the language for the addon's UI",
+      "Settings.translation_restart_popup.label": "Translation Update",
+      "Settings.translation_restart_popup.description": "Information about translation updates",
+      "Settings.translation_restart_popup.message1": "Some translations may not apply",
+      "Settings.translation_restart_popup.message2": "until you restart Blender."
+    }
+  }
+  
\ No newline at end of file
diff --git a/resources/translations/ja_JP.json b/resources/translations/ja_JP.json
new file mode 100644
index 0000000..8e2c537
--- /dev/null
+++ b/resources/translations/ja_JP.json
@@ -0,0 +1,41 @@
+{
+  "authors": ["Avatar Toolkit Team"],  
+  "messages": {
+    "Language.auto": "Automatic",
+    "Language.en_US": "English",
+    "Language.ja_JP": "日本語",
+    "Quick_Access.label": "クイックアクセス",
+    "Quick_Access.import_export.label": "インポート/エクスポート",
+    "Quick_Access.options": "クイックアクセスオプション",
+    "Quick_Access.import_menu.label": "インポートメニュー",
+    "Quick_Access.import": "インポート",
+    "Quick_Access.export": "エクスポート",
+    "Quick_Access.import_pmx": "PMXインポート",
+    "Quick_Access.import_pmx.desc": "MMD PMXモデルをインポート",
+    "Quick_Access.import_pmd": "PMDインポート",
+    "Quick_Access.import_pmd.desc": "MMD PMDモデルをインポート",
+    "Quick_Access.export_menu.label": "エクスポートメニュー",
+    "Quick_Access.select_export.label": "エクスポート方法を選択",
+    "Quick_Access.select_export_resonite.label": "Resonite",
+    "Export.resonite.label": "Resoniteにエクスポート",
+    "Export.resonite.desc": "すべてのアニメーションとマテリアルを含むGLBをエクスポートします。アニメーションデータについては以下を参照してください：",
+    "Optimization.label": "最適化",
+    "Optimization.options.label": "最適化オプション",
+    "Optimization.combine_materials.label": "マテリアルを結合",
+    "Optimization.combine_materials.desc": "類似したマテリアルを結合してモデルを最適化します",
+    "Optimization.join_all_meshes.label": "すべてのメッシュを結合",
+    "Optimization.join_all_meshes.desc": "すべてのメッシュを1つに結合します",
+    "Optimization.join_selected_meshes.label": "選択したメッシュを結合",
+    "Optimization.join_selected_meshes.desc": "現在選択されているすべてのメッシュを1つに結合します",
+    "Tools.tools_title.label": "ツール",
+    "Tools.convert_to_resonite.label": "Resoniteに変換",
+    "Tools.convert_to_resonite.desc": "モデルのボーン名をResoniteと互換性のある名前に変換します",
+    "Settings.label": "設定",
+    "Settings.language.label": "言語",
+    "Settings.language.desc": "アドオンのUI言語を選択してください",
+    "Settings.translation_restart_popup.label": "翻訳の更新",
+    "Settings.translation_restart_popup.description": "翻訳の更新に関する情報",
+    "Settings.translation_restart_popup.message1": "一部の翻訳は適用されない場合があります",
+    "Settings.translation_restart_popup.message2": "Blenderを再起動するまで。"
+  }
+}
diff --git a/ui/__init__.py b/ui/__init__.py
index cc0041c..7db3379 100644
--- a/ui/__init__.py
+++ b/ui/__init__.py
@@ -13,7 +13,3 @@ else:
     for module_name in [ basename(f)[:-3] for f in modules if isfile(f) and not f.endswith('__init__.py')]:
         print("reloading " +module_name)
         exec("importlib.reload("+module_name+")")
-        
-    
-    
-
diff --git a/ui/optimization.py b/ui/optimization.py
index 0de9bae..bcad49c 100644
--- a/ui/optimization.py
+++ b/ui/optimization.py
@@ -1,10 +1,11 @@
 import bpy
 from ..core.register import register_wrap
 from .panel import AvatarToolkitPanel
+from ..functions.translations import t
 
 @register_wrap
 class AvatarToolkitOptimizationPanel(bpy.types.Panel):
-    bl_label = "Optimization"
+    bl_label = t("Optimization.label")
     bl_idname = "OBJECT_PT_avatar_toolkit_optimization"
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
@@ -13,18 +14,19 @@ class AvatarToolkitOptimizationPanel(bpy.types.Panel):
 
     def draw(self, context):
         layout = self.layout
-        layout.label(text="Optimization Options")
+        layout.label(text=t("Optimization.options.label"))
         
         row = layout.row()
         row.scale_y = 1.2 
-        row.operator("avatar_toolkit.combine_materials", text="Combine Materials")
+        row.operator("avatar_toolkit.combine_materials", text=t("Optimization.combine_materials.label"))
+        
 
         layout.separator(factor=0.5)
         
         row = layout.row(align=True)
         row.scale_y = 1.2 
-        row.operator("avatar_toolkit.join_all_meshes", text="Join All Meshes")
-        row.operator("avatar_toolkit.join_selected_meshes", text="Join Selected Meshes")
+        row.operator("avatar_toolkit.join_all_meshes", text=t("Optimization.join_all_meshes.label"))
+        row.operator("avatar_toolkit.join_selected_meshes", text=t("Optimization.join_selected_meshes.label"))
         row.operator("avatar_toolkit.remove_doubles_safely", text="Remove Doubles Safely")
 
         # Add optimization options here
diff --git a/ui/panel.py b/ui/panel.py
index a987a28..29829de 100644
--- a/ui/panel.py
+++ b/ui/panel.py
@@ -1,5 +1,6 @@
 import bpy
 from ..core.register import register_wrap
+from ..functions.translations import t
 
 @register_wrap
 class AvatarToolkitPanel(bpy.types.Panel):
diff --git a/ui/quick_access.py b/ui/quick_access.py
index 1d93c25..81b9bee 100644
--- a/ui/quick_access.py
+++ b/ui/quick_access.py
@@ -2,13 +2,15 @@ import bpy
 from ..core.register import register_wrap
 from .panel import AvatarToolkitPanel
 from bpy.types import Context
+from ..functions.translations import t
 
 from ..core.import_pmx import import_pmx
 from ..core.import_pmd import import_pmd
+from ..core.importer import import_fbx
 
 @register_wrap
 class AvatarToolkitQuickAccessPanel(bpy.types.Panel):
-    bl_label = "Quick Access"
+    bl_label = t("Quick_Access.label")
     bl_idname = "OBJECT_PT_avatar_toolkit_quick_access"
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
@@ -17,22 +19,23 @@ class AvatarToolkitQuickAccessPanel(bpy.types.Panel):
 
     def draw(self, context: Context):
         layout = self.layout
-        layout.label(text="Quick Access Options")
-    
+        layout.label(text=t("Quick_Access.options"))
+
         row = layout.row()
-        row.label(text="Import/Export", icon='IMPORT')
+        row.label(text=t("Quick_Access.import_export.label"), icon='IMPORT')
         
         layout.separator(factor=0.5)
 
         row = layout.row(align=True)
         row.scale_y = 1.5  
-        row.operator("avatar_toolkit.import_menu", text="Import")
-        row.operator("avatar_toolkit.export_menu", text="Export")
+        row.operator("avatar_toolkit.import_menu", text=t("Quick_Access.import"))
+        row.operator("avatar_toolkit.export_menu", text=t("Quick_Access.export"))
 
 @register_wrap
 class AVATAR_TOOLKIT_OT_import_menu(bpy.types.Operator):
     bl_idname = "avatar_toolkit.import_menu"
-    bl_label = "Import Menu"
+    bl_label = t("Quick_Access.import_menu.label")
+    bl_description = t("Quick_Access.import_menu.desc")
 
     def execute(self, context: Context):
         return {'FINISHED'}
@@ -44,13 +47,19 @@ class AVATAR_TOOLKIT_OT_import_menu(bpy.types.Operator):
     def draw(self, context: Context):
         layout = self.layout
         layout.label(text="Select Import Method")
-        layout.operator("avatar_toolkit.import_pmx", text="Import PMX")
-        layout.operator("avatar_toolkit.import_pmd", text="Import PMD")
+        layout.operator("avatar_toolkit.import_pmx", text=t("Quick_Access.import_pmx"))
+        layout.operator("avatar_toolkit.import_pmd", text=t("Quick_Access.import_pmd"))
+        layout.operator("avatar_toolkit.import_fbx", text="Import FBX") 
 
 @register_wrap
 class AVATAR_TOOLKIT_OT_export_menu(bpy.types.Operator):
     bl_idname = "avatar_toolkit.export_menu"
-    bl_label = "Export Menu"
+    bl_label = t("Quick_Access.export_menu.label")
+    bl_description = t("Quick_Access.import_pmx.desc")
+
+    @classmethod
+    def poll(cls, context):
+        return any(obj.type == 'MESH' for obj in context.scene.objects)
 
     def execute(self, context: Context):
         return {'FINISHED'}
@@ -61,13 +70,14 @@ class AVATAR_TOOLKIT_OT_export_menu(bpy.types.Operator):
 
     def draw(self, context: Context):
         layout = self.layout
-        layout.label(text="Select Export Method")
-        layout.operator("avatar_toolkit.export_resonite", text="Export Resonite")
+        layout.label(text=t("Quick_Access.select_export.label"))
+        layout.operator("avatar_toolkit.export_resonite", text=t("Quick_Access.select_export_resonite.label"))
+        layout.operator("avatar_toolkit.export_fbx", text="Export FBX")
 
 @register_wrap
 class AVATAR_TOOLKIT_OT_import_pmx(bpy.types.Operator):
     bl_idname = "avatar_toolkit.import_pmx"
-    bl_label = "Import PMX"
+    bl_label = t("Quick_Access.import_pmx")
 
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
@@ -82,7 +92,7 @@ class AVATAR_TOOLKIT_OT_import_pmx(bpy.types.Operator):
 @register_wrap
 class AVATAR_TOOLKIT_OT_import_pmd(bpy.types.Operator):
     bl_idname = "avatar_toolkit.import_pmd"
-    bl_label = "Import PMD"
+    bl_label = t("Quick_Access.import_pmd")
 
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
@@ -93,3 +103,31 @@ class AVATAR_TOOLKIT_OT_import_pmd(bpy.types.Operator):
     def invoke(self, context: Context, event):
         context.window_manager.fileselect_add(self)
         return {'RUNNING_MODAL'}
+
+@register_wrap
+class AVATAR_TOOLKIT_OT_import_fbx(bpy.types.Operator):
+    bl_idname = "avatar_toolkit.import_fbx"
+    bl_label = "Import FBX"
+
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+
+    def execute(self, context):
+        import_fbx(self.filepath)
+        return {'FINISHED'}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {'RUNNING_MODAL'}
+
+@register_wrap
+class AVATAR_TOOLKIT_OT_export_fbx(bpy.types.Operator):
+    bl_idname = 'avatar_toolkit.export_fbx'
+    bl_label = "Export FBX"
+    bl_description = "Export the model as FBX"
+    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}
+
+    def execute(self, context):
+        bpy.ops.export_scene.fbx('INVOKE_DEFAULT')
+        return {'FINISHED'}
+
+
diff --git a/ui/settings.py b/ui/settings.py
new file mode 100644
index 0000000..9714da6
--- /dev/null
+++ b/ui/settings.py
@@ -0,0 +1,39 @@
+import bpy
+from ..core.register import register_wrap
+from .panel import AvatarToolkitPanel
+from ..functions.translations import t
+
+@register_wrap
+class AvatarToolkitSettingsPanel(bpy.types.Panel):
+    bl_label = t("Settings.label")
+    bl_idname = "OBJECT_PT_avatar_toolkit_settings"
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'UI'
+    bl_category = "Avatar Toolkit"
+    bl_parent_id = "OBJECT_PT_avatar_toolkit"
+
+    def draw(self, context):
+        layout = self.layout
+        layout.prop(context.scene, "avatar_toolkit_language", text=t("Settings.language.label"))
+
+@register_wrap
+class AVATAR_TOOLKIT_OT_translation_restart_popup(bpy.types.Operator):
+    bl_idname = "avatar_toolkit.translation_restart_popup"
+    bl_label = t("Settings.translation_restart_popup.label")
+    bl_description = t("Settings.translation_restart_popup.description")
+    bl_options = {'INTERNAL'}
+
+    def execute(self, context):
+        if context.scene.avatar_toolkit_language_changed:
+            # Reload the addon after the popup is closed
+            bpy.ops.script.reload()
+            context.scene.avatar_toolkit_language_changed = False
+        return {'FINISHED'}
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self, width=300)
+
+    def draw(self, context):
+        layout = self.layout
+        layout.label(text=t("Settings.translation_restart_popup.message1"))
+        layout.label(text=t("Settings.translation_restart_popup.message2"))
diff --git a/ui/tools.py b/ui/tools.py
index 2c2ea05..d25a4be 100644
--- a/ui/tools.py
+++ b/ui/tools.py
@@ -2,6 +2,7 @@ import bpy
 from ..core.register import register_wrap
 from .panel import AvatarToolkitPanel
 from bpy.types import Context
+from ..functions.translations import t
 
 @register_wrap
 class AvatarToolkitToolsPanel(bpy.types.Panel):
@@ -14,11 +15,11 @@ class AvatarToolkitToolsPanel(bpy.types.Panel):
 
     def draw(self, context: Context):
         layout = self.layout
-        layout.label(text="Tools")
+        layout.label(text=t("Tools.tools_title.label"))
         layout.separator(factor=0.5)
 
         row = layout.row(align=True)
         row.scale_y = 1.5  
-        row.operator("avatar_toolkit.convert_to_resonite", text="Translate to Resonite")
+        row.operator("avatar_toolkit.convert_to_resonite", text=t("Tools.convert_to_resonite.label"))
         row = layout.row(align=True)
-        row.operator("avatar_toolkit.remove_doubles_safely", text="Remove Doubles Safely")
\ No newline at end of file
+        row.operator("avatar_toolkit.remove_doubles_safely", text="Remove Doubles Safely")