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About

Change Video Speed

Speed up or slow down a video in your browser.

How to use Change Video Speed

  1. Choose the video file you want to speed up or slow down.
  2. Select a playback speed multiplier from 0.25x to 4x.
  3. Optionally choose whether to mute the soundtrack.
  4. Click Change Video Speed and download the processed clip.

Frequently Asked Questions

Does this upload my video to a server?
No. All processing is done using your browser hardware via the WebCodecs API. Your files remain 100% private and never cross the network.
Why mute audio for high speeds?
High speed multipliers can cause pitch distortion. Muting the audio keeps the video clean and ready for adding background music.
Can I create a timelapse with this tool?
Yes! Selecting 2.0x or 4.0x is an easy way to condense long footage into an engaging quick recap video.
Accepted formats: MP4, WEBM, MOV, MKV