Change video speed

Slow down or speed up MP4, MOV and WebM video from 0.25× to 4×. Adjust audio tempo with the video and export MP4.

Free · No sign-up · Files stay on your device

Features

  • Set playback speed between 0.25× and 4×.
  • Adjust source audio tempo while aiming to preserve pitch.
  • Export the changed speed into a new MP4 file.

How to use this tool

  1. Choose a video clip.
  2. Set the speed multiplier.
  3. Process the video and download the result.

Good to know

This tool is free without sign-up, with unlimited processing and exports within the displayed input limits.

  • Extreme speed changes may introduce audio artifacts. The output is re-encoded and its duration changes.

Privacy and local processing

This tool processes your input in your browser. Source files and text are not uploaded to a FormatOwl processing server. Advanced-tool access and trial balances are checked online using tool IDs, file types, sizes and page counts. Free tools do not require account authorization. Save the results you need before leaving or refreshing the page.

Processing engines, preview resources or fonts may be downloaded from this site when needed. These downloads do not upload your source content.

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