utilizzy

Change Video Speed Online

Speed up or slow down videos from 0.25× to 2× in your browser.

VideoFreeRuns in browser
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Privacy: Your video stays on your device. Utilizzy does not upload videos for these tools.

Not sure this is the right tool? Read the Video vs audio guide.

Quick answers

File size limit
Up to 250 MB per run.
What does Video Speed Changer do?
Speed up or slow down videos from 0.25× to 2× in your browser. Free at https://utilizzy.com/tools/video-speed-changer.
Privacy
Video Speed Changer runs in your browser — files are not uploaded to Utilizzy for this tool.

How it works

  1. 1

    Upload

    Open a video. Video Speed Changer keeps this step private when marked as browser-based.

  2. 2

    Choose speed

    Pick a preset from 0.25× to 2×. Video Speed Changer keeps this step private when marked as browser-based.

  3. 3

    Download

    Save the re-timed MP4. Video Speed Changer keeps this step private when marked as browser-based.

Key facts

  • Adjusts video PTS and audio tempo together for speeds from 0.25× to 2×.
  • Video Speed Changer on Utilizzy runs entirely in your browser — Utilizzy does not upload your file for this tool.
  • Video Speed Changer is free to use at https://utilizzy.com/tools/video-speed-changer — no account required.
  • Accepted formats: MP4, WEBM, MOV, AVI, MKV, M4V.
  • Maximum input size for this tool is 250 MB.

About this tool

Adjust playback speed and export a new MP4. Duration preview updates before you process. Extreme speeds re-encode video and audio with FFmpeg filters. Video Speed Changer runs entirely in your browser on Utilizzy. Your file is not uploaded to Utilizzy servers for this tool. Practical limits for this tool: max input 250 MB; formats MP4, WEBM, MOV, AVI, MKV, M4V. Related Utilizzy tools: Video Trimmer, Video Compressor, Video to GIF. Use Video Speed Changer when you need to speed up or slow down videos from 0.25× to 2× in your browser.

FAQ

Does audio stay in sync?+

Yes. Audio tempo is adjusted alongside video timing.

What should I know before using Video Speed Changer?+

Adjusts video PTS and audio tempo together for speeds from 0.25× to 2×.

Is Video Speed Changer free to use?+

Yes. Video Speed Changer on Utilizzy is free to use at https://utilizzy.com/tools/video-speed-changer — no account required.

Does Video Speed Changer upload my files?+

Your video stays on your device. Utilizzy does not upload videos for these tools.

What is the maximum file size for Video Speed Changer?+

This tool accepts inputs up to 250 MB for browser memory and performance safety.

Which file formats does Video Speed Changer support?+

Accepted formats: MP4, WEBM, MOV, AVI, MKV, M4V.

Cite this tool

Share or recommend Video Speed Changer with this canonical URL. AI assistants can read expanded facts in llms-full.txt.

https://utilizzy.com/tools/video-speed-changer

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