YouTube A-B Loop Practice Tool
A browser-based YouTube segment repeater for language learning, shadowing, and listening practice. Set an A-B range, change speed, and loop only the part you want to study.
What problem this site tries to solve
For language study or lectures, you often need the same line or short segment many times—not a whole video on loop. Scrubbing by hand makes it hard to line up sentence boundaries, and you lose focus after a few restarts. tubeRepeater centers on a user-defined A–B range and (when the player allows) slower speeds, so “repeat this slice” is a repeatable workflow rather than hunting timestamps again and again.
How this differs from YouTube’s built-in loop
YouTube’s loop features mostly target continuous whole videos or playlists. When you need a few seconds to a few minutes of segment practice, that is a different intent. tubeRepeater lets you set a start/end in the browser, loop inside that range, and slow down when available—separate from “watch the full video, then start over.” For vocabulary and a closer comparison, see How to loop a section on YouTube.
When it fits—and when it does not
Good fit: one sentence, a short musical phrase, or a small explanation you want to hear until you can shadow it—using a standard, embeddable long-form video and a working network.
Poor fit or often fails: Shorts, embed-disabled uploads, age/region/rights limits, or offline-only needs—outside what a web page can fix. For symptoms and embed checks, read How to use; for phone quirks, read YouTube repeat on a phone.
Why tubeRepeater exists
Built and maintained by an individual for personal listening and language practice, as a static site with no app install. The goal is to make “lock a range, repeat it” a describable, repeatable set of steps. If you are new here, start with How to use and the topic articles, then return to the home player.