Speed up or slow down a video
Re-export a video at a different playback speed, from 0.25x slow motion to 4x fast-forward.
Everything runs in your browser. Nothing is uploaded to our servers.
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Drop a video here, or click to browse
01
Drop in a video
Read locally to build the preview — nothing is uploaded.
02
Pick a speed
0.25× slow motion up to 4× fast-forward, with an option to keep the original pitch.
03
Download
A new file at the new speed — the original is never modified.
Frequently asked
Is my video uploaded anywhere?
No. The whole re-export happens entirely in your browser.
How long does this take?
Roughly the output length, not the input length — a 2× export of a 1-minute clip takes about 30 seconds, since it plays the source back internally at that rate to re-encode it.
What does "keep original pitch" do?
Speeding up audio naturally raises its pitch (and slowing down lowers it) — a chipmunk voice at high speed. Turning this on corrects for that; turning it off is sometimes the point, if that effect is what you're after.