Tools/Video Speed Controller (0.25×-3×)

Video Speed Controller (0.25×-3×)

Instantly speed up or slow down any MP4, WebM or MOV in your browser. No uploads, no quality loss.

Speed Up Your Video

Select Speed

Drag and drop your video file here

or click to browse (max 500MB)

This tool works entirely in your browser. Your videos are never uploaded to any server.

Powered by modern browser APIs like MediaRecorder and Canvas for efficient video processing.

Powered by WebCodecs + Remotion, Cap processes every frame locally for near-instant results—while keeping your files 100% private.

1

Modern browser APIs crunch frames directly on your GPU/CPU, so even large clips render in seconds.

2

Nothing ever touches a server. All encoding and decoding stays on-device.

3

Dial in super-slow 0.25× for tutorials or crank up to 3× for snappy demos—audio pitch is auto-corrected.

MP4, WebM, MOV, AVI and MKV are all supported—basically anything modern browsers can decode. Chrome is recommended for best results.

Up to 500 MB for smooth in-browser performance.

No. We preserve your original resolution and bitrate; only playback speed changes.

WebCodecs relies on your device's hardware. Older CPUs/GPUs or throttled mobiles will take longer.

Yes—modern Safari, Chrome and Firefox are supported, but Chrome is recommended.

Grab Cap — the open-source screen recorder & editor that lives on your machine.