SpeedTune

Control playback speed on any HTML5 video or audio. 0.25x to 5x on any website.

SpeedTune lets you control playback speed on any video or audio element on any website. YouTube has a built-in speed controller, but it maxes out at 2x and doesn't work on other sites. SpeedTune works everywhere and goes from 0.25x to 5x in precise increments. One extension for every video on the web. How it works: Click the SpeedTune icon or use keyboard shortcuts to adjust speed. The current speed displays as an overlay on the video and in your toolbar badge. Your preferred speed is remembered per website. Keyboard shortcuts: S key: decrease speed by 0.25 D key: increase speed by 0.25 R key: reset to 1.0x Key features: Speed range from 0.25x to 5.0x Per-domain speed memory. Set 2x on Coursera and it stays 2x every time you visit. Quick presets: 1x, 1.5x, 2x accessible from the popup Minimal speed overlay on the video that fades after one second Toolbar badge shows current speed at a glance SpeedTune is lightweight, uses no background processes when inactive, and collects no data. All preferences are stored locally on your device. Built for students, podcast listeners, researchers, and anyone who values their time.