Free browser tool

Free Slow Down Video

Slow a clip to half or quarter speed and download an MP4. The preview plays at the chosen speed before you export, and nothing is uploaded. To shorten a tutorial instead, speed the video up.

No upload
No sign-up
No watermark

Drop a video here or click to browse

MP4, MOV, WebM, AVI — processed locally in your browser

Your video never leaves your device — 100% private, no cloud upload

How to slow down a video

Drop the video

MP4, MOV, WebM, and AVI all work. The file stays in the browser.

Pick 0.5× or 0.25×

0.5× is selected. Use 0.25× when you want a stronger slow-motion look. Press play to judge it.

Download the MP4

Choose what happens to the audio, then export. A 10-second clip at 0.5× becomes about 20 seconds.

When to slow a clip down

A click that is hard to see

Half speed makes a fast UI interaction readable in a tutorial still sequence or a short demo.

Product detail

Slow the moment a control changes state so a viewer can see what happened.

Slow-motion social clips

0.25× stretches a short action into a clip that fills a Short or Reel.

Matching a voiceover

A slightly slower speed can fit a narration without cutting frames. Use Keep pitch so the original audio, if you leave it in, stays natural.

Frequently Asked Questions

How do I slow down a video?

Drop the file in, leave the speed at 0.5× or pick 0.25×, and press play to preview. Click Change speed and download the MP4. The new file is longer than the original by the same factor.

What happens to the audio?

Keep pitch leaves a voice sounding natural while the clip runs slower. Shift pitch drops the voice into a slow-motion effect. Mute drops the track entirely.

Can I speed a video up instead?

Yes. The Speed Up Video page opens at 2×, which is the usual setting for trimming dead time out of a tutorial. The same editor goes up to 16×.

Is the video uploaded?

No. FFmpeg runs in your browser. The file stays on your device.