FFmpeg in the Browser
Run FFmpeg entirely in your browser via WebAssembly. Transcode, trim, extract audio, probe, and run custom commands — nothing leaves your device.
FFmpeg in the Browser
Transcode, remux, trim, probe and extract — powered by FFmpeg compiled to WebAssembly. Your media never leaves this browser tab.
100% local — nothing is uploaded
All processing runs in your browser via WebAssembly. The first time you load the core it downloads ~30 MB of WASM from a CDN; after that it stays in memory for this session. The stock single-threaded core has no libx264/libmp3lame — prefer the codec-safe presets (remux, trim, frame, GIF, WAV, mpeg4).