UnityZip

A simple tool to extract Unity package (.unitypackage) files and get usable files like FBX models, PNG/JPG textures, and icons.

Quick Start

For End Users (Easiest Way)

1. Download the Release

   • Go to the Releases page and choose the version you need:
     • Windows users (recommended): Download UnityZip-Windows-x64.exe - Standalone executable, no .NET installation required (~36 MB)
     • Linux users: Download UnityZip-Linux-x64 - Standalone executable, no .NET installation required (~37 MB)
     • Cross-platform (smaller): Download UnityZip-Framework-Dependent.zip - Requires .NET 10.0 Runtime installed (~83 KB)
   • Place the executable in a folder (e.g., C:\UnityZip\)

2. Run the Program

   • Option A - Drag and Drop:

     • Drag your .unitypackage file onto UnityZip.exe

   • Option B - Command Line:

     • Open Command Prompt or PowerShell
     • Navigate to where UnityZip.exe is located
     • Run: UnityZip.exe "path\to\your\file.unitypackage" --raw-only

3. Find Your Files

   • The program creates a folder with the same name as your package file
   • Inside you'll find:
     • Models/ - All FBX model files (ready to drop into Resonite)
     • Textures/ - All texture files (PNG, JPG, etc.) (ready to drop into Resonite)
     • Icons/ - Menu sprites and UI icons (optional for Resonite)
     • Extracted Unity/ - Complete Unity project structure (for reference - contains everything)

Command Line Options

• --raw-only - Extract only usable files (FBX, PNG, JPG, etc.). Skips Unity internal files like .meta, .prefab, .mat
• --overwrite - Overwrite existing files if they already exist (default: skip existing files)
• --verbose, -v - Print detailed progress: current file, sizes, timings (useful if extraction appears stuck)
• --force-extract - Re-extract the tar archive even if a previous temp extraction exists

Features

• ✅ Extracts .unitypackage files (which are tar.gz archives)
• ✅ Reconstructs original file paths from Unity's internal structure
• ✅ Detects and extracts raw files: FBX models, PNG/JPG textures, OBJ files, etc.
• ✅ Smart organization: Automatically separates models, textures, and icons into separate folders
• ✅ Excludes GoGo Locomotion icons from the Icons folders
• ✅ By default, skips existing files to prevent accidental overwrites

Output Structure

After extraction, you'll get a folder structure like this:

MyPackage/
Extracted Unity/ # Complete Unity project structure
Assets/ # Full Unity Assets folder
Avatars/
Viwi/
Accessories/
Feathers/
feathers2.fbx
Materials/
Black/
t_viwi_Feathers_BaseColor.png
...
Resources/
...
GoGo/ # Other Unity folders (if present)
...
Models/ # All FBX model files in one place
feathers2.fbx
Pupper.fbx
...
Textures/ # All texture files (excluding icons and GoGo)
t_viwi_Feathers_BaseColor.png
t_viwi_Feathers_NormalMap.jpg
...
Icons/ # Menu sprites and UI icons only (GoGo icons excluded)
viwi_icon_feathers_white.png
symbol_eye_dilate.png
...

For Resonite Users

Recommended: Use the organized folders:

• Drag Models/ folder for the 3D models
• Drag Textures/ folder for the textures
• Optionally drag Icons/ if you want the menu sprites

The Extracted Unity/ folder contains the complete Unity project structure and is provided for reference only.

For Developers

Building from Source

# Clone the repository
git clone <repo-url>cd UnityZip
# Build
dotnet build
# Run
dotnet run -- "path/to/package.unitypackage" --raw-only
# Build Release
dotnet build -c Release
# Output: bin/Release/net10.0/UnityZip.exe

Release Downloads

When downloading from the Releases page, you'll find three options:

1. UnityZip-Windows-x64.exe (Recommended for Windows)

   • Standalone executable (~36 MB)
   • No .NET installation required
   • Just download and run!

2. UnityZip-Linux-x64 (For Linux)

   • Standalone executable (~37 MB)
   • No .NET installation required
   • Make executable with: chmod +x UnityZip-Linux-x64

3. UnityZip-Framework-Dependent.zip (Cross-platform, smaller)

   • Requires .NET 10.0 Runtime installed
   • Works on Windows, Linux, and macOS
   • Much smaller file size (~83 KB)

Requirements

• For standalone executables: None! Just download and run.
• For framework-dependent version: .NET 10.0 Runtime must be installed
• For building from source: .NET 10.0 SDK required

About

This project was crafted using Cursor AI to create exactly the tool needed for extracting Unity packages and organizing files for easy use in Resonite and other applications. The AI-assisted development process allowed for rapid iteration and refinement to match specific requirements.