Loop the difficult part of any lecture, slow down the explanation, and take notes — all without leaving the page. The free study companion for YouTube learners.
Start Studying Free →Missed a formula or concept? Set an AB loop around that exact section and replay it until it clicks.
If the lecture moves too fast, drop to 0.75x or 0.5x speed to catch every word clearly.
InfiniteLooper's built-in note feature lets you write study notes right inside the tool. Saved in your browser — create a free account to sync across devices.
Set 1.5x or 2x for sections you understand well. Get through long lectures faster.
Save loops with titles like "Calculus: Integration by Parts" and tag them by subject.
Works on mobile — perfect for studying on your phone between classes.
Find your YouTube lecture, tutorial or online course video. Copy the URL.
Paste the URL and the video loads instantly. No account required.
When you hit a complex section — a formula, a process, a diagram — set the AB loop around it.
Click the notepad icon to open Video Notes. Write your notes while the section replays automatically.
When you've understood the concept, remove the loop and set 1.5x or 2x for sections you know well.
About using InfiniteLooper for studying
Yes. Set the A slider to just before the explanation you want to review and B to just after it. InfiniteLooper loops that section automatically — no manual rewinding, no losing your place in the video.
Yes. The built-in notes panel opens alongside the video. Write your study notes, summaries, or formulas while the video loops — without switching to a separate app. Create a free account to sync notes across your laptop and phone.
Yes. InfiniteLooper supports speeds from 0.25x to 2x. Speed through review material at 1.5x–2x, and slow down to 0.5x–0.75x for dense derivations or technical explanations. More efficient than watching everything at the same pace.
Yes. InfiniteLooper generates a shareable URL with your exact loop points. Send it to your study group — everyone jumps to the same section of the video instantly, which makes online study sessions much more efficient.
Yes. All core features — section loop, speed control, video notes, and share links — are completely free with no account required. A premium plan lets you save unlimited loops and organize them by subject or course.
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Loop any YouTube video with InfiniteLooper.
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