Hotkeys: Space play/pause, [ set A, ] set B, L loop on/off.
🎵 NEW: Record audio directly from popular video sites, music platforms, or any browser tab using the "Record Tab Audio" feature!
Perfect for learning guitar, piano, bass, drums, violin, or any instrument!
100% Free — No Catch
Paid tools like Amazing Slow Downer charge $50+. Music Slow Downer gives you everything they do — and more — at no cost:
- ✅ Slow down or speed up audio without changing pitch
- ✅ Pitch shift ±12 semitones
- ✅ A/B loop any section & save loop presets
- ✅ Export loops as WAV at your chosen speed & pitch
- ✅ Frequency isolation — hear just bass, guitar, vocals or drums
- ✅ Record audio directly from any browser tab
- ✅ No download, no account, no subscription
Frequently Asked Questions
How do I slow down a song without changing its pitch?
Load your audio file, then drag the Speed slider down to anywhere from 0.25× to 1.5×. Music Slow Downer uses pitch-preserving time-stretching, so the song plays slower while staying in the same key.
Is Music Slow Downer free to use?
Yes — it's 100% free with no account, no download, and no subscription. It runs entirely in your browser and is supported by non-intrusive ads.
Can I slow down music from streaming sites or other browser tabs?
Yes. Use the Record Tab Audio feature to capture sound from another browser tab, then slow it down, change the pitch, and create practice loops just like a local file.
Do I need to install anything or upload my files?
No. Everything runs in your browser and your audio never leaves your device — nothing is uploaded to a server. There's nothing to install and no sign-up required.
Can I loop a section of a song to practice it?
Yes. Set an A marker and a B marker to loop any section, save loops as presets, and export a looped section as a WAV file at your chosen speed and pitch for offline practice.
What instruments can I practice with it?
Any instrument — guitar, piano, bass, drums, violin, saxophone and more. Frequency isolation presets even let you hear just the bass, guitar, vocals, or drums to learn a part faster.