Loop it. Slow it down. Nail it. 🎵
RepeatLab is the audio looper and speed trainer built for musicians. Loop any section of a song, slow down music without changing the pitch, and now loop videos too — the fastest way to master difficult riffs, solos and passages.
Trusted by musicians worldwide · 35,000+ downloads · No ads · No account · 100% offline
🔁 PRECISE A-B LOOPING
- Tap to mark the start and end of any tricky section and loop it instantly
- Fine-tune loop points to the millisecond on the interactive waveform
- Multiple named, color-coded loops per song (Pro), shown on a visual timeline
- Jump between loops from the lock screen, notification or Bluetooth controls
🐢 SLOW DOWN MUSIC WITHOUT CHANGING PITCH (Pro)
- Slow songs down to 0.5× or speed up to 2.0× in fine 0.1 steps
- Tempo changes, pitch stays true — no chipmunk effect
- Simple multiplier or exact BPM mode (up to 400 BPM)
- Tap Tempo: detect a song's BPM by tapping along
🎼 CHANGE THE KEY, NOT THE SPEED (Pro · NEW)
- Transpose any song up or down by up to 12 semitones
- Match your instrument's tuning or practice in a comfortable key
- Pitch is saved per song and combines freely with speed control
🎬 VIDEO LOOPING (NEW)
- Import video tutorials or live performances and loop them like audio
- Slow down videos to practice along, section by section
- Supports MP4, MOV, M4V, MKV, WEBM and AVI
📊 WAVEFORM WITH ZOOM
- See every beat: played vs. unplayed audio and all loop markers
- Drag to scrub precisely, zoom 0.25×–5× (Pro) to hit the exact note
🎧 BUILT FOR PRACTICE
- Unlimited songs — always free, batch import included
- MP3, WAV, OGG, FLAC, M4A and AAC support with editable tags
- Full background playback with lock-screen and headphone controls
- Export any loop as a lossless WAV file (44.1/48 kHz) — free
- Back up your whole library to a single local file (Pro)
🔒 PRIVATE BY DESIGN
- 100% offline — your files never leave your device
- No account, no registration, no ads
- Analytics strictly opt-in, GDPR compliant
🌍 IN YOUR LANGUAGE
Fully localized in 16 languages, with an in-app language switcher.
PERFECT FOR
Guitarists, bassists, drummers, pianists, singers, DJs and music students — transcribe solos, learn songs by ear, practice with a slowed-down backing track or drill that one bar until it sits.
FREE VS. PRO
Free forever: unlimited songs, 1 loop per song, WAV export, background playback, no ads.
Pro: unlimited loops, speed & BPM control, pitch control, waveform zoom, library backup — weekly, yearly (3-day free trial) or one-time lifetime purchase.
Built with its users: vote for features directly in the app. Download RepeatLab and transform your music practice today!