Tools

Convert video format

Convert between MP4, WebM, MKV and MOV; MP4 and MOV get H.264 video and AAC sound so any player opens them, and other formats copy streams when they can. Scale down, remove the sound or trim at the same time. Encoding uses the browser.

Process locally

Files stay in this browser session. Closing or clearing releases them.

Import recipe

Choose files

MP4, MOV, WebM, MKV, up to 5

Drop files here, or

Choose files

Adjust settings

Optional: Output format, Largest height, Sound and more

Output formatLargest heightSoundStartseconds or m:ss; empty = beginningEndseconds or m:ss; empty = to the end

Run

Processes in this browser; cancel at any time

Choose files first