Show HN: FFmpeg.wasm In-Browser Video Conversion

Convert videos between different formats directly in your browser. All processing happens locally on your device - no uploads, completely private and secure.

Drop your video here or click to browse

Supports MP4, WebM, AVI, MOV, MKV, and more

How it works

• 100% Private: All video processing happens in your browser using WebAssembly. Nothing is uploaded to any server.
• Powered by FFmpeg: Uses FFmpeg.wasm, a WebAssembly port of the popular FFmpeg multimedia framework.
• First Load: The first time you convert, it will download ~30MB of libraries. Subsequent conversions are much faster.
• Large Files: Very large videos (>500MB) may be slow or fail due to browser memory limitations.