Change video speed
Speed up or slow down a video from 0.25× to 4× with matched audio.
Home › Free online video tools
Frequently asked questions
Does the audio get high-pitched?
No. Audio is stretched or compressed in time keeping its pitch. You can also remove it.
Why does it take a while?
The video is re-encoded in your browser with FFmpeg (WebAssembly). The first time it downloads the engine (~32 MB), then it's cached.
Is Change video speed free to use on Toolkoa?
Yes, the Change video speed tool is 100% free, unlimited and requires no sign up or installation.
Are my files sent to any server when using Change video speed?
No. Every operation on Toolkoa is processed privately and locally, directly in your own browser.
Do I need to install anything to use Change video speed?
Nothing to install. Change video speed runs in any modern desktop or mobile browser, and once the page has loaded you can keep using it without relying on the connection.