Loop a difficult lecture passage and adjust its playback speed free. Premium adds notes and saved loops in your account, so you can return to your study collection on another device.
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. Saving notes requires Premium. Notes belong to your account and can be opened after signing in on another device. Compare plans.
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.
Premium adds account notes alongside your saved loops. Write a summary or a question to revisit.
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. Saving notes requires Premium. Sign in to your account on another device to access saved notes.
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.
Section looping, available speed controls and sharing links are free without an account. Premium adds saved loops, tags and account notes for organising study by subject or course.
Explore how others use InfiniteLooper to learn faster