RateShift — Playback Speed Controller

Set speed once; it stays on every video and audio site. 0.125x–16x speed control.

Watch and listen at your own pace with RateShift. RateShift lets you choose a playback speed and keep it across supported HTML5 video and audio pages. Move faster through lectures, tutorials and long recordings, or slow things down when you need to follow the details. Set your preferred speed once, instead of adjusting each player again and again. • Choose speeds from 0.125× to 16×. • Switch quickly with preset buttons. • Fine-tune playback with a speed dial or exact numerical input. • Keep your playback preferences saved locally. • Control supported video and audio from a simple browser toolbar popup. Free trial and pricing RateShift is free to install. Verify an eligible email address to start a 7-day trial. Each eligible email receives one trial; reinstalling or restoring it does not reset the original expiry date. After the trial, a lifetime license costs USD 7.99 as a one-time purchase. There is no subscription and no automatic charge when the trial ends. Purchases are processed on a separate Stripe page. After payment confirmation, copy your license key to activate or restore access. Each license supports one current browser installation and can be transferred. Privacy Playback preferences stay on your device. RateShift does not upload browsing history, visited-page URLs, or page and media content to its license service. Email verification, license authorization, payment and security information are handled as described in the Privacy Policy. Compatibility RateShift works with supported HTML5 video and audio players. Browser-internal pages, extension store pages, and some protected or custom players are not supported. Support: hi@yaolifeng.com