Free Video Speed Changer
Speed up or slow down a video, from half speed to double speed, in your browser.
The audio is time-stretched to match, and the result saves as MP4.
- Runs locally
- Add media
- Choose the settings
- Download
- Free
- No sign-up
- Runs in your browser
- No watermark
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Use cases
Where it helps
Private files
Work on a photo, video or document before it is ready to share.
Quick fixes
Convert, check or tidy a file without installing software.
The next step
Download the result for print, publishing, or a PoYo generator.
Three steps
How to use Free Video Speed Changer
Add media
The FFmpeg encoder downloads once, then runs on your device.
Choose the settings
Width, format, speed or start and end times, depending on the tool.
Download
Save the new file when encoding finishes.
Features
What this tool includes
Runs locally
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Add media
The FFmpeg encoder downloads once, then runs on your device.
Choose the settings
Width, format, speed or start and end times, depending on the tool.
Download
Save the new file when encoding finishes.
PoYo
Need a new image or video?
These free tools work on files you already have. To create an image, video or audio from a description, open a PoYo generator.
Free Video Speed Changer FAQ
Do I need an account?
No. Open the page and use it.
Is my file uploaded?
No. Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Is there a watermark?
No. PoYo adds nothing to the download.
Why does it pause the first time?
Some tools download an encoder or AI model on the first run. That download contains none of your file, and later runs are usually faster.
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Free to use, right in your browser.
Speed up or slow down a video, from half speed to double speed, in your browser. The audio is time-stretched to match, and the result saves as MP4.