Change video speed online for free

Drag the slider to speed up or slow down your video, then download it.

Downloading the engine…0%

🔒 100% private: your files never leave your deviceUp to ~200 MB, depending on your device's memory

How it works

1

Upload your video

Any common video format.

2

Set the speed

0.5x to 2x the original.

3

Download

Your adjusted video, picture and sound in sync.

How to speed up or slow down a video

Upload a video, drag the slider to the speed you want, from 0.5x (half speed) to 2x (double speed), and download the result. It works with MP4, MOV and WebM files up to about 200 MB, depending on your device's memory.

Why change a video's speed? Speeding up a screen recording or a long clip keeps the viewer's attention, while slowing one down can emphasize an action or make a fast moment easier to follow. This tool changes the speed of the picture and the sound together, so they stay perfectly in sync, and the audio keeps its natural pitch: only the speed changes, not the voice.

Unlike changing the playback speed in a video player, this re-encodes the file itself, so the result plays at the new speed everywhere, including after you download it, share it or repost it. Good starting points: 1.25x to 1.5x for tutorials and screen recordings, 2x to skim long footage, and 0.5x for slow motion on an action you want to study.

Everything runs in your browser, so your video is never uploaded. Before changing the speed, trim the clip to the part you need with the video trimmer, which also makes processing faster. After the change you can loop it with the video looper, turn a moment into a GIF or shrink the file with the video compressor. For audio-only files, use the audio speed changer.

Frequently asked questions

Does the audio stay in sync with the video?
Yes. Both the picture and the sound are sped up or slowed down by the same amount, so they stay in sync.
Does this affect the audio pitch?
No. The pitch stays natural and only the speed changes, the same way the audio speed tool works.
What speeds can I choose?
From 0.5x to 2x the original speed.
How is this different from the speed control in a player?
This tool re-encodes the file, so the result plays at the new speed everywhere, even after you share or repost it.
Which formats can I use?
MP4, MOV and WebM, with files up to about 200 MB depending on your device.
Is my video uploaded anywhere?
No. Everything runs in your browser and your video never leaves your device.

More tools

Video/audio engine: FFmpeg (LGPL/GPL). License info