Cut & Edit
Video Speed Changer
Create slow motion or faster clips while seeing how the duration changes.
Waiting for media
Processing video...No file selected
Selected files stay on this device. File sizes shown before processing use browser metadata only, such as 1.00 MB units.
Your video is processed locally in your browser and is not uploaded to our servers. Processing starts only when you click the button — nothing happens until then.
How to use
- 1.Upload - Choose a source video.
- 2.Select speed - Pick a preset from 0.25x to 2x or enter a custom value.
- 3.Preview - The player updates playback speed for a quick check.
- 4.Export - Process and download the changed-speed video.
Features
Supported formats
Privacy
Files are handled as local browser objects. BeYourTools does not upload video or audio contents, does not store filenames, and does not send media to third-party processing APIs.
FAQ
Does speed change duration?
Yes. A 2x video is about half as long, while a 0.5x video is about twice as long.
Is pitch preserved?
The FFmpeg audio tempo filter is used for common speeds, but pitch preservation can vary with extreme settings and source codecs.
Is my video uploaded to a server?
No. This tool processes your files locally in your browser. BeYourTools does not upload, store, or send your media to a processing API.