AnvilBuild a native Minecraft launcher by writing only HTML.

The Rust backend handles Java, downloads, launch and updates. You only touch the frontend.

Zero-config native launcher

Generate a Windows · macOS · Linux launcher from a config.json file and an HTML page — no native code to write.

Downloads and manages Java, vanilla/Fabric/Forge assets, and launches the game with session management.

Vanilla, React, Vue or Solid — with or without TypeScript. Eight ready-made templates.

Declare mods in config.json and they're downloaded, verified and kept in sync automatically.

Ship update manifests via URL and generate every app icon size from a single logo file.

Bring your own authentication (OAuth, custom API…) or use offline mode out of the box.