RepeatLab: Slow & Loop Music

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!