Vidsieve - A-B Loop, Speed & Pitch Changer for YouTube

A-B repeat any part of a YouTube video, slow down the tempo without changing pitch and transpose the key. Practice music or dance.

Practice the hard part of any YouTube video until you get it right. Vidsieve Loop is an A-B looper for YouTube. Mark a section with one key, repeat it as many times as you need, slow it down without changing the pitch, and transpose it to fit your instrument or your voice. It works for language learning too: repeat a sentence until you can say it. LOOP ANY SECTION • Press N where the part starts and again where it ends. It starts repeating right away • Control everything from the popup or the side panel, right next to the video • Name your sections and play them in order, each one as many times as you choose • Practice pause after each repeat, to get ready for the next one • Ads don't break your practice: the loop waits and picks up after them SPEED AND TEMPO • Slow down or speed up from 25% to 400%, for the whole video or just one section • Pitch stays the same when you change the speed • Progressive speed: start slow and go a little faster on each repeat • See the tempo in BPM, or tap along to find it PITCH SHIFTER AND TRANSPOSE • Transpose by semitones, up to 36, and fine-tune in cents • Match a song to your instrument's tuning or your vocal range MORE FOR PRACTICE • Mirror the video to learn dance moves facing the same way • A library of everything you practiced: open a video and your sections and settings are still there • Share what you marked with a link • Back up to a file • Keyboard shortcuts for play, back, forward, loop and mark FREE, PRIVATE, NO ACCOUNT The free version has everything above, with up to 3 sections per video. No ads, no account, no tracking. Everything is saved in your browser. VIDSIEVE PRO (OPTIONAL, ONE-TIME PAYMENT) • Unlimited sections per video • Lists and your own titles in the library • Count-in clicks before each repeat • Your own shortcut keys • Sync across computers through your Chrome account One purchase unlocks Pro in every Vidsieve extension. No subscription.