AllEasyToolsVideo & Media
Change video speed
Speed up or slow down video and audio from 0.5× to 2×. No account required. Processing stays in your browser.
No uploads. Up to 100 MB total, 5 minutes and 1920 × 1080 pixels (portrait also supported). Start with short clips on mobile.
How to use this tool
- Choose a local file and review its information and preview.
- Adjust the settings and generate the file. Canceling releases the processing engine.
- Play or open the result before downloading and sharing.
Example and limitations
At 2×, a 40-second clip lasts about 20 seconds. Audio pitch changes too; this tool does not preserve voice pitch. Output is WebM.
Actual compatibility
MP4, MOV, WebM or MKV input: reading depends on the codecs inside and your browser. AVI, protected files and external URLs are not supported. Editing requires WebCodecs and OffscreenCanvas. Tested in Chromium on Windows; Safari, Firefox and mobile require verification on your device. Each operation has a 3-minute execution limit.
Output may lose quality or increase in size. Platform acceptance is not guaranteed; check current platform requirements.
Media engine licenses