UWP.js

UWP.js is an open source project to revive Unity Web Player games in the browser using modern JS/WASM technology.
Upload your .unity3d files to play them directly — no plugin required.

Features

• Upload and inspect Unity Web Player games (.unity3d)
• AssetBundle decompression (gzip, zlib, LZ4)
• Asset browser: textures, meshes, audio, assemblies
• Light/dark theme toggle
• 100% open source, no server required

Roadmap

• Full UnityFS block decompression (LZ4HC, LZMA)
• SerializedFile type tree parsing
• Texture2D / Mesh / AudioClip extraction
• WebGL scene rendering
• Scene hierarchy viewer

Usage

1. Serve the project root with any static file server
2. Open index.html
3. Upload a .unity3d file

Development

node fetch-libs.js
python3 -m http.server 8000

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© UWP.js contributors