loope

.studio

Learn

Enter the studio.
Zoom in on the music.

Slow down any song without changing pitch, loop the hard part, transpose to your key — all in your browser. Your audio never uploads. No signup, no install.
Drop Audio to loope

Supported: MP3, WAV, FLAC and OGG files

CORE FEATURES

Slow Down

Reduce playback speed from 0.25× to 2× without changing the pitch. Hear every note, every nuance, at your own pace.

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Loop A→B

Set two markers on the waveform and loop the section until you nail it. Move markers freely, repeat as many times as you need.

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Transpose

Shift pitch up or down by semitones, fine-tune by cents. Match any key without re-tuning your instrument.

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WHY USE LOOPE?
Runs on Your CPU
Native-speed audio processing right in your browser. No upload queue, no file size cap. Results in seconds.
100% Private
Your audio never leaves your device. Safe for unreleased tracks, lessons, practice recordings. No accounts, no tracking, no cloud storage.
Works Everywhere
Any modern browser on Windows, Mac, Linux, Chromebook, iPhone, or Android. No installs, no plugins, no extensions — just open the page.

Frequently Asked Questions

Yes. All features are free with no limits. There's no premium tier, no ads, no watermarks, and no file size restrictions.

No. Your files never leave your device. Everything is processed locally in your browser. No data is sent anywhere.

MP3, WAV, FLAC, and OGG. You can also export your slowed-down or transposed loop as WAV, MP3, FLAC, or OGG.

Yes. loope works in any modern browser including Safari on iPhone/iPad and Chrome on Android.

No. loope uses time-stretching to change speed independently of pitch. You can also transpose pitch independently using the semitone and fine-tune sliders.