Change Video Speed makes a video faster or slower, from 0.25× slow motion to 8× fast forward. The sound keeps its normal pitch, so voices do not turn into chipmunks, or you can let the pitch change like a tape, or remove the sound. Before you start, the page shows how long the new video will be. The video is processed in your browser and never uploaded.
How to change video speed
- Choose a video: MP4, MOV, WebM or MKV.
- Pick the Speed. The new length appears under the options, for example “2:00.0 becomes 1:00.0” at 2×.
- Choose the Sound: normal pitch, pitch changes too, or removed.
- Choose the Frame rate: 24, 30 or 60 fps.
- Click Change speed, keep the tab open while it works, then check the result and download it.
Which speed to choose
| Speed | Effect | Good for |
|---|---|---|
| 0.25× | Four times slower | Sports technique, a splash, a jump |
| 0.5× | Half speed | Dance moves, tutorials, dramatic moments |
| 0.75× | Slightly slower | Fast talkers, learning a song or a routine |
| 1.25×, 1.5× | A bit faster | Lectures, meetings, long explanations |
| 2× | Double speed | Cutting a clip down to fit a post |
| 3×, 4× | Much faster | Cooking, crafts, a drive or a walk |
| 8× | Timelapse | Painting, building, clouds, a long process |
Three ways to handle the sound
- Same speed, normal pitch (no chipmunk voices): the sound is sped up or slowed down with its pitch kept. Speech stays easy to understand from about 0.75× to 2×.
- Same speed, pitch changes too (like a tape): faster sound gets higher, slower sound gets deeper, like a tape or a record played at the wrong speed. Good for comic effects.
- Remove the sound: a silent video. Useful for timelapses where the sound would be noise, or when you will add music later.
Frame rate
The result is re-encoded at the frame rate you choose. 30 fps suits most uses and keeps the file a sensible size. 60 fps looks smoother when you speed up action and makes a bigger file. 24 fps gives a film look. Slowing down does not invent new frames, so smooth slow motion needs footage filmed at a high frame rate, such as a phone’s slow-motion mode.
Common uses
- Slow motion for sport, pets, kids and dance. See Slow Motion Video.
- Speed up a long recording to fit a time limit on Reels, TikTok or Shorts. See Speed Up Video.
- Watch lectures faster and keep the speaker easy to follow at 1.25× or 1.5×.
- Make a timelapse at 8× from an ordinary video.
Good to know
- The output is MP4 (H.264 and AAC), or WebM in browsers that cannot encode MP4.
- iPhone videos in HEVC cannot be read in some browsers. Try a recent Chrome or Edge, or Safari on a Mac.
- Long videos take longer, since every frame is re-encoded. Keep the tab open until it is done.
More video tools
Cut the part you want with the Video Cutter first. Shrink the result with the Video Compressor, or turn it into a GIF with Video to GIF. To change only the speed of a song or a podcast, use Change Audio Speed.
Private by design
Your video is processed on your own device and never uploaded. See how it works.