Change video speed
Speed a video up or slow it down, from a quarter to four times. The sound follows, and its pitch changes with it.
Drop a video here
MP4, MOV, WebM or MKV. Up to 1.0 GB per file.
Runs in your browser. Your files are not uploaded.
Large videos can run out of memory on phones.
Changing the picture uses your browser's own video encoders. Recent Chrome and Edge can write H.264, VP9 and AV1; Firefox and older Safari lack some encoders, so the tools offer only what your browser can produce and say so when something is missing.
Need only the soundtrack? Extract audio with the audio tools.
How to use Change video speed
Choose a video or drop it on the page.
Pick a speed from 0.25x to 4x.
Check the new length shown under the buttons, then select Change the speed.
Download the result.
Questions
It is sped up or slowed down with the picture, so its pitch rises or falls like a tape.
Above 1x, frames are dropped where needed to keep the result at 60 frames per second or less.
No. Everything runs in your browser on your own device, and the video is never uploaded.
Related tools
- Video cutter (trim video)Cut a video to the part you want, with a preview and buttons to mark the start and end.
- Resize videoScale a video to 1080p, 720p or 480p, or fit it to a square, portrait or landscape frame.
- Rotate and flip videoTurn a video by 90 degrees or mirror it horizontally or vertically.
- Mute videoRemove the sound from a video and keep the picture untouched.