Speed up or slow down any video
Make a tutorial snappier, a timelapse faster or a moment slower. Preview the new speed, choose whether voices keep their pitch, and save a new video at that speed.
To change a video's speed, open it here, pick a speed from 0.25× to 4× and preview it, then click Save at this speed. The browser plays the video at that speed and records it, so a 2× export of a 4-minute video takes about 2 minutes and a 0.5× export takes about 8. Voices keep their normal pitch unless you turn that off. The new file is MP4 where your browser can record MP4 and WebM otherwise.
3 steps, a few seconds
Open your video
Drop an MP4 or WebM file up to 500 MB.
Pick a speed
From 0.25× to 4×, and play the preview to check it.
Save it
The video is recorded at the new speed; the tool shows how long that takes.
What the Video Speed Changer does
0.25× to 4×
Slow motion, small tweaks such as 1.25×, or fast-forward up to four times.
Natural voices
Keep voice pitch on so sped-up speech doesn't sound squeaky, or turn it off.
Live preview
Hear and see the new speed before you record anything.
Time shown up front
The new length and the recording time are shown before you start.
Private
The video never leaves your browser.
Free
No account and no watermark.
- Input
- Any video your browser can play, up to 500 MB; the sped-up or slowed result can be up to 20 minutes
- Speeds
- 0.25×, 0.5×, 0.75×, 1.25×, 1.5×, 2×, 3× and 4×
- Output format
- MP4 if your browser can record MP4 (the tool checks before you start), otherwise WebM, which plays in Chrome, Firefox, Edge, VLC and on YouTube
- Resolution
- The original size, capped at 1920 px on the long side; frame rate up to 30 fps
- Cost and privacy
- Free, no sign-up; runs in your browser
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Questions about the Video Speed Changer
How do I speed up a video?
How long does saving take?
Does the sound change pitch?
Is slow motion smooth?
What format is the result?
Is my video uploaded?
Link to this tool
Found it useful? Paste this into your blog, docs or resource page so others can find it.