How to Use

tubeRepeater is a simple in-browser YouTube A–B loop practice tool. There is no app to install: paste a standard embeddable watch URL, pick a start/end range, and repeat the section—useful for language listening, shadowing, or musical phrase practice.

What you can do

Set points A and B to loop a segment, adjust playback speed when the player supports it, and open the Traditional Chinese or English pages using the header language link. This site is static; playback is handled by the official YouTube IFrame Player.

Who it is for

Learners who want to rehearse the same line, explanation, or phrase without hunting timestamps manually; anyone who prefers a minimal UI focused on one clip; and people who want slow and normal speeds for comparison.

Basic steps

1. On the home page, paste a supported YouTube URL and press Load.
2. After playback starts, move to the start position and press Set A.
3. Move to the end position and press Set B (B must be after A).
4. Turn Repeat on to loop the range; pick a speed from the speed row when available.
5. Paste a new URL to switch videos. Click 中文 in the header to open the Traditional Chinese version of this page.

Typical A–B looping workflow

Listen through a sentence or phrase, then shrink A–B to the hardest slice. Practice slowly, then return to normal speed. With repeat enabled, playback jumps back near A as it approaches B so you stay inside the range.

Supported URL formats

Standard embeddable videos using these common forms:

• https://www.youtube.com/watch?v=VIDEO_ID
• https://youtu.be/VIDEO_ID

Unsupported or likely-to-fail cases

Shorts links, videos that disallow embedding, removed videos, or other restrictions may fail with an error message. Try another publicly embeddable video or double-check the copied URL.

Frequently asked questions

• Which YouTube URLs work in tubeRepeater?

  Use standard embeddable watch URLs such as https://www.youtube.com/watch?v=VIDEO_ID or https://youtu.be/VIDEO_ID. The video must be publicly playable with embedding allowed.

• Why are Shorts links not supported?

  Shorts behave differently from regular watch pages. tubeRepeater focuses on reliable parsing for standard watch URLs and does not support Shorts. Use a regular watch URL when available.

• Why do I see an embed disabled or playback error?

  The uploader may have disabled embedding, or the video may be unavailable for external players. tubeRepeater cannot bypass those restrictions—choose another embeddable video.

• How can I use A-B looping for language learning or shadowing?

  Start with a tight A-B range, enable Repeat, and slow down when possible. Widen the range once you can shadow comfortably. For a longer walkthrough, see YouTube listening practice and A-B loops.