YouTube Speed Control

A browser extension that lets you control the speed of YouTube videos, even if they're embedded, including changing the speed "on the fly", i.e. changing the speed will immediately affect any videos you're watching.

Available for:

• Google Chrome
• Mozilla Firefox
• Microsoft Edge
• Opera

Made by avi12.

Made with

• Svelte
• Svelte Materialify

Requirements for setting up

Install Node.js and PNPM.

Install dependencies

pnpm i

Start Rollup for development

pnpm dev

Running

Chromium/Chrome

pnpm run-chromium

Edge on Windows 10/11

pnpm run-edge-windows

Browsers that don't support Manifest v3

1. Build the extension for Firefox/Opera (see below).
2. Open the extensions page in that browser.
3. Enable the developer mode (top-right corner usually).
4. Either drag-drop the browser-compatible ZIP onto the browser or click "Load unpacked extension" and choose it.

Build & pack

pnpm build-pack

Build for Firefox (first run pnpm build-pack)

pnpm build-for-firefox

Contribution

Feel free to contribute! Make sure to comply with the license, GPL v3.