The live looper with unlimited undo.
UndoLooper is built for musicians who actually perform — not just layer drones. Record a verse. Layer a chorus. Strip it back to just the bass. Bring it all back. Every take, every layer, every decision is recoverable.
Unlike most loopers that force you into rigid bars and double-tap gymnastics, UndoLooper gives you full, unlimited undo and redo over your loop history. Build a massive arrangement, pull it apart live, and rebuild it — without ever losing what you had.
One purchase. Two apps.
UndoLooper ships as a standalone app and an AUv3 plugin in a single purchase. No upgrade fees. No separate SKUs. Run it direct to your audio interface, or drop it into Logic Pro, MainStage, or any AUv3-compatible host.
Built for the stage.
Near-zero latency. Rock-solid timing. MIDI learn on every control so you can hit record, undo, and redo from a foot controller without looking down. Stop Echo ends your loop with a natural musical tail instead of a harsh digital cliff.
Save the whole session.
Your arrangement — every layer, every undo state — saves to a .undoloop file. Reload it tomorrow and pick up exactly where you left off. The same session opens in standalone or plugin mode.
Features
• Unlimited undo and redo of loop layers
• Standalone app + AUv3 plugin (one purchase)
• Near-zero latency with ASIO-class performance
• Stop Echo — musical tails instead of hard cuts
• Back 5 / Bring It All Back — jump multiple layers at once
• MIDI Learn on every button and knob
• Save and load full sessions as .undoloop files
• Works with any AUv3-compatible host (Logic Pro, MainStage, GarageBand, Reaper, and more)
Made for loopers, songwriters, guitarists, singers, and anyone who builds arrangements live.