A-B Repeat is a free Chrome extension that lets you loop any section of a YouTube video with precision. Simply set a start point (A) and an end point (B), either by clicking or pressing the A/B keys on your keyboard, and the extension will seamlessly replay that segment on a loop.
Perfect for language learners practicing pronunciation, musicians perfecting a riff, students rewatching tutorials, or anyone mastering a specific moment on YouTube.
it is clean, lightweight, and no login required.
