Play HEVC, AV1 and MKV in the browser with WebCodecs (no server transcoding)

TL;DR Movi Player uses WebCodecs + a WebAssembly demuxer (FFmpeg compiled to WASM) to play HEVC, AV1, MKV, 4K HDR, and multi-audio files directly in the browser. No server transcoding. No FFmpeg on your backend. Drop-in replacement for . npm i movi-player src= "movie.mkv" controls > moviplayer.com · Live demo · GitHub · Chrome extension · VS Code extension Why WebCodecs matters for web video Every major browser ships with WebCodecs — a low-level API that gives you direct access to the GPU's hard