YouTube AB Repeat: Free Tool to Loop Any Section for Practice
2026-05-31·4 min read
Learn how to loop any section of a YouTube video for free. PhraseLoop lets you set an A-B repeat zone, adjust speed in 0.05x increments, and save practice notes — no login needed.
What Is YouTube AB Repeat?
AB repeat (also called section loop) means setting a start point (A) and an end point (B) on a YouTube video and having just that section loop repeatedly.
YouTube's built-in loop only repeats the full video. If you want to practice a specific 5-second phrase, riff, or pronunciation, you need an external tool.
3 Ways to AB Repeat YouTube for Free
Option 1: Use a Web App (Easiest)
Tools like PhraseLoop let you paste a YouTube URL, drag A and B markers onto your target section, and start looping immediately. No installation, no account required.
Additional features:
- Speed control in 0.05x steps (e.g. 0.75x, 0.80x, 0.85x)
- Gap time between loops so you can replay what you just heard
- Practice log to track reps and save notes per section
- Works on mobile and desktop
Option 2: Chrome Extension
Extensions like Looper for YouTube add a loop button directly in the YouTube player. They require Chrome and do not work on mobile.
Best for: Desktop Chrome users who do not need practice logging.
Option 3: URL Trick
Replacing youtube.com with sites like looptube.io gives basic AB looping without installing anything.
Best for: One-off loops with no extra features needed.
How to Use PhraseLoop for AB Repeat
1. Open PhraseLoop 2. Paste your YouTube URL into the input field 3. The video loads in the built-in player 4. Drag the A marker (start) and B marker (end) on the timeline 5. Hit Play — the A-B section loops automatically 6. Adjust speed with the slider in 0.05x steps 7. Add a gap between loops to practice silent recall
No account needed for steps 1-7. Sign in with Google only to save your work.
Why 0.05x Speed Control Matters
YouTube offers speed presets at 0.25x intervals: 0.50x, 0.75x, 1.00x. That gap is large for a learner who needs something between 0.60x and 0.70x.
With 0.05x steps, you can find the exact speed where you can follow along comfortably.
Compare the Options
| Feature | PhraseLoop | Chrome Extension | URL Trick |
|---|---|---|---|
| AB loop | Yes | Yes | Yes |
| Fine speed control | Yes | Some | No |
| Practice log | Yes | No | No |
| Mobile | Yes | No | Yes |
| No install | Yes | No | Yes |
Start Practicing
AB repeat is one of the fastest ways to build muscle memory for anything you learn from video.
Try PhraseLoop
YouTube section loop, speed control, and practice log. Free, no login required.
Start practicing for free →