Convert video between any format
Convert video files between MP4, WebM, MOV, MKV, AVI and GIF, with width/fps/quality control.
Frequently asked questions
Why is there no HEVC/H.265 output option?
ffmpeg.wasm's software build doesn't ship a HEVC encoder, so we standardise MP4 output on H.264, which is universally compatible and still hardware-decodable on virtually every device.
How long does conversion take?
It runs on your CPU in the browser tab, so a 1080p minute-long clip typically takes 20-90 seconds depending on your device.