Video Speed Changer
Change video playback speed
Drag & drop or click to select a video file
Change video speed online, free — speed up or slow down
This free online video speed changer lets you speed up or slow down any clip in seconds. Pick a file and everything runs inside your browser, so your footage never leaves your device. There's no upload, no sign-up, and it works on both desktop and mobile browsers.
Set any speed from 0.25x to 4x, or tap a preset — 0.5x, 1x, 1.5x, 2x or 4x — for a quick change. It handles both fast-forward and slow motion, and you can keep the audio or drop it. Processing is done with canvas and MediaRecorder, and the result is exported as a WebM file.
Use it to condense long tutorials with a 2x speed-up, study sports or dance moves in slow motion, or make snappy clips for social media. There's no watermark, and the only file-size limit is your device's available memory.
Frequently asked questions
- Is my video uploaded anywhere?
- No. The speed change is processed in your browser with canvas and MediaRecorder, so your video is never sent to a server.
- How fast or slow can I go?
- You can set anything from 0.25x slow motion to 4x fast-forward. Presets of 0.5x, 1x, 1.5x, 2x and 4x are included, and you can fine-tune to any value in between.
- What happens to the audio?
- Turn on "Keep audio" to export with sound, or off for a silent clip. When you change the speed, the audio speeds up or slows down along with the video.
- What format is the output?
- The sped-up or slowed-down video is exported as a WebM file, which plays in most browsers and imports into common video editors.
- Is it free and is there a watermark?
- It's completely free with no watermark and no sign-up. Because it runs entirely in the browser, you can use it on desktop or mobile without installing anything.
