Change Video Speed
Speed up or slow down a video — no uploads.
Runs entirely in your browser using native recording — nothing is uploaded. Output is WebM (plays in all modern browsers and on YouTube, Instagram, etc.). Processing plays through the clip once, so a 2-minute video takes about 2 minutes. Works best in Chrome, Edge or Firefox on desktop.
How it works
Speeds up or slows down your video by adjusting playback rate while re-encoding to WebM natively. Audio pitch shifts with speed (the natural tape effect). Because it records the played-through result, a 2× speed-up of a 60-second clip takes about 30 seconds to produce. Everything stays in your browser.