Update: January 27, 2026 v1.09s
Multi-Instance MIDI Mapping & Stop Button Refinement
Hey everyone,
I've been working on some dual-looper setups lately—building a verse arrangement on one instance and a chorus on another—and discovered something worth sharing.
Independent MIDI Mapping Per Instance
Each UndoLooper instance stores its own MIDI mappings completely independently. You can load up two instances (or ten, if you're feeling ambitious), map each one to different MIDI notes or CCs, and they'll coexist perfectly. This opens up some interesting workflow possibilities, like mapping one looper's STOP button to the same footswitch as another looper's PLAY button for seamless section transitions.
Stop Button Timing Fix
During testing, I noticed the STOP button wasn't behaving quite right for multi-looper workflows. For single-looper use with quick taps, it was barely noticeable, but in a dual-looper setup the timing issue became evident.
What changed:
The STOP button previously triggered on release rather than press. It would start a timer when you pressed down, then execute the action when you let go—checking whether you'd held it long enough (2+ seconds) to trigger a CLEAR instead of just a STOP.
This introduced 50-300ms of latency depending on how quickly you released the footswitch. Not ideal when you're trying to nail tight transitions between loopers.
The fix:
STOP now triggers immediately on press, while the 2-second hold-to-clear functionality still works perfectly—it just checks the duration on release. No changes to the audio engine; just smarter MIDI handling that keeps everything lean and responsive.
Why it matters:
For dual-looper setups with overlapping mappings (e.g., Looper A's STOP mapped to the same footswitch as Looper B's PLAY), this eliminates timing slop entirely. Press once, both loopers respond instantly. The transitions are now frame-accurate.

If you've been experimenting with creative MIDI mappings or multi-instance setups, I'd genuinely love to hear about them. UndoLooper is built for musicians who care about this level of control, and I'm always learning from how you're using it in the real world.
And the standalone for Windows has an ICON now.
–Ryan

UndoLooper - Windows Standalone Now Available
Hey everyone,
Just wanted to share that the standalone version of UndoLooper is finally out for Windows. Took longer than expected but it's stable now.
What It Is
UndoLooper is a live looper with unlimited undo/redo. The main thing that sets it apart is you can build up a full arrangement (say, a dense chorus with 10+ layers), then undo back to just your basic rhythm parts (sparse verse), then redo all the way back. Not just one level of undo - the entire history.
Standalone runs without a DAW, which was the most requested feature since the VST3 release.
Technical Bits

Any kHz, (Mono or Stereo)
ASIO support on Windows for low latency
MIDI learn works with notes and CC messages now
Saves loops as .undoloop files (includes the full undo/redo history)
60 second max loop length to ensure it works on OLDER PCs, more modern PCs can do much more.
14-day trial, $59.99 for lifetime license (up to 3 activations)

How I'm Using It
I run it standalone on a dedicated laptop for live gigs. MIDI foot controller for all functions, no mouse needed during performance. Being able to jump between verse and chorus arrangements on the fly without stopping is pretty clutch.
The undo history saving means I can practice the same arrangement repeatedly - save it once, load it before each practice session or gig.
Known Issues / Limitations

Windows is the only standalone for now but the VST3 version can be used any platform's DAW. (Mac standalone is being tested, facing digital signing issues from Apple, but I am persistent and will succeed.)

No tempo sync or quantization - it's all freeform
I am using an intel 9700K for live looping with Cubase (vst Version), Windows 11 (standalone version) and OBS streaming in 2K as a test environment Any CPU from the last 10 years handles undo/redo just fine.
Can't edit .undoloop files externally (they're XML but not really meant to be hand-edited). You are meant to share the files and edit them within the Undolooper program/VST. Stuff created on VST is also sharable / useable in Windows and vice versa.

Download
Available at undolooper.com - free trial is fully functional for 14 days.
Happy to answer any technical questions. If anyone runs into issues with specific audio interfaces or MIDI controllers, let me know.
-Ryan
www.undolooper.com

Why I Built a Looper That Lets You Undo Everything (And Why You Need It)

I've owned every looper pedal on the market. Boss RC-505, Electro-Harmonix 45000, Pigtronix Infinity, TC-Helicon VoiceLive—you name it, I've gigged with it.

And every single one of them has the same fatal flaw.

One Undo. ONE.

You're three minutes into building a complex loop during a live performance. Bass line? Perfect. Rhythm guitar? Locked in. You add a melodic layer and... it's slightly off.

You hit undo.

Now your rhythm guitar is gone too.

You can redo to get it back, but now you're stuck with the bad melody again. There's no going back further. No second chances. You either live with the mistake or start over.

That's not how creativity works.

The Problem With "Live" Loopers

Here's what always bothered me about hardware loopers:

Long-presses everywhere. Want to stop? Long-press. Want to clear? Long-press and pray you held it the right amount of time. When you're performing LIVE, you need instant response. Not "hold for 2 seconds." Not "double-tap within 500ms." Just press. React. Flow.

Harsh stops. Most loopers just CUT your audio when you stop. It's jarring. It's unmusical. It kills the vibe instantly.

No memory. You spend 20 minutes building the perfect loop arrangement, and when you shut down? Gone. Forever. No way to practice it again. No way to share it. No way to pick up where you left off.

So I built something different.

Introducing UndoLooper: The Looper VST That Thinks Like You Do

UndoLooper has unlimited undo and redo. Not one level. Not two. Unlimited.

Here's where it gets powerful: Use undo and redo as performance tools.

Build up your full arrangement—bass, drums, rhythm, lead, vocals. That's your chorus. Now hit undo, undo, undo. Strip it back to just bass and drums. That's your verse. Perform the verse section, then hit redo, redo, redo to build back up into the massive chorus.

You're not fixing mistakes. You're creating song structure in real-time. Verse to chorus and back again. Breakdown to drop. Sparse to full. Your entire performance history becomes your arrangement.

But That's Not All

No long-presses. Every button responds instantly. One press = one action. Your performance flows without interruption. The only long-press is to clear the loop and start over by holding the STOP button—intentional, so you never accidentally wipe your work.

"Back 5" for quick navigation. Need to jump back multiple layers fast? Hit "Back 5" and instantly undo five layers at once. Perfect for quickly getting back to your verse arrangement without mashing the undo button repeatedly.

"Bring It Back" for instant recovery. Ever undo too far? "Bring It Back" instantly restores your most recent loop state before you started undoing. It's like a safety net for your performance—you can experiment fearlessly knowing you can always get back to where you were.

"Stop Echo" for musical endings. When you stop, UndoLooper adds a carefully manicured musical echo tail that fades naturally. No more harsh cuts. Just smooth, professional stops that sound intentional.

Real-time performance, even on older systems. I built the audio engine from scratch specifically for live performance reliability. UndoLooper runs smoothly on older CPUs using ASIO devices.   Simply put—you don't need a $3000 computer to perform confidently. Low latency. Rock solid. Even when you're hammering undo/redo during a live set.  

Save Your Entire Performance. Here's where it gets interesting.

The Revolution is   .undoloop  Files

UndoLooper saves everything—your audio AND your complete undo/redo history—into a single .undoloop file.

Think about what this means:

• Practice the same loop arrangement night after night
• Build a setlist of loops ready to perform
• Share your performance with another musician who can undo and redo through YOUR layers
• Collaborate remotely by passing loop projects back and forth
• Learn from others by exploring how they built their loops, layer by layer

I couldn't launch UndoLooper without this feature. Because a looper isn't just an instrument—it's a community waiting to happen.

My Vision: A Community of Live Loopers

Imagine a world where:

• Beginners can download .undoloop files from pros and study exactly how they layer sounds
• You can share your best performance online and others can remix it, add to it, learn from it
• Loop artists collaborate across continents, building on each other's work
• Someone in Tokyo can experience your Berlin basement jam session, undo by undo

That's what I want to build. And I need your help.

Try It Free for 14 Days

UndoLooper is completely free for 14 days. No restrictions. No credit card. Just download and start looping.

It works on Mac and Windows as a VST3 plugin in any DAW. I built the audio engine from scratch to run smoothly even on older computers—because not everyone has a $3000 rig, and you shouldn't need one to perform live.

After 14 days, it's $59.99 for lifetime version 1.x updates and works on up to 3 computers.

I Need Your Feedback

This is the first public post about UndoLooper. You're early. You're the pioneers.

Here's what I want to know:

• What features would make this essential for YOUR live setup?
• What other loopers have you used? What did they get wrong?
• Would you share .undoloop files with the community?

Drop a comment below or reach out directly. I'm building this FOR live performers, and I want to make sure it solves YOUR problems.

Join the Movement

If this resonates with you—if you've ever been frustrated by a looper that couldn't keep up with your creativity—share this post.

Send it to your looper friends. Post it in your musician forums. Tag someone who needs unlimited undo in their life.

Let's build the community that live loopers have always deserved.

P.S. - I use UndoLooper in my own performances every single day. It's not vaporware. It's not a cash grab. It's the looper I needed to exist, so I built it. Now it's yours.

— Ryan

What's your biggest looper frustration? Tell me in the comments. 👇

🎉 UndoLooper Free 14-Day Trial is Here!

The wait is over. Try UndoLooper completely free for 14 days.

What You've Been Asking For

Since UndoLooper's early development, the #1 request has been clear: "Let us try it before we buy it."  And I want you to join the UNDOLOOPER community today. So let's do this.

I heard you. Today, we're launching the full-featured 14-day trial.

🚀 No Restrictions. No Limitations.

Your 14-day trial includes everything:

✅ Full loop recording - 60 seconds of loop time
✅ Unlimited undo/redo - Build complex layers without fear
✅ All advanced features - Back 5, Bring It Back, Echo Stop
✅ MIDI learn - Use your footpedals and controllers
✅ Save/load projects - Keep your loops, share with friends
✅ Professional quality - Same audio engine as the full version

This isn't a demo. This is UndoLooper.  It'll Go.

📅 14 Days to Create

Two weeks is enough time to:

• Learn the workflow in practice sessions
• Use it at rehearsals
• Try it in live performances
• Build a library of loops
• Share your creations with friends
• Decide if it's right for you

The trial starts the moment you load the plugin. Use every day wisely.

🎸 Built for Sharing

Your loops belong to you.

During your trial:

• Save unlimited loop projects
• Export your performances
• Share files with other UndoLooper users
• Keep everything you create

Even if you don't purchase, your loops are yours forever.

⚡ What Happens After 14 Days?

Day 15:

• UndoLooper will prompt for a license key
• All your saved loops remain accessible
• Purchase a license to continue creating

Simple. Honest. No surprises.

🛡️ Fair Use Protection

We built the trial system to be fair to everyone:

• One trial per computer - No reinstall tricks
• Date-proof - System clock changes won't extend your trial
• Secure storage - Your trial data is protected

This ensures genuine musicians get their 14 days, and we can keep developing UndoLooper.

💳 After Your Trial

Ready to keep looping?

Purchase Options:

• Single License - $59.99 (Single computer license, can use multiple instances on same machine.  Future Updates included.)
• Instant activation - Enter your key, start creating
• Lifetime updates - Version 1.x updates included
• Support included - Email support at support@undolooper.com 
  Visit undolooper.com for current pricing
  
  
  BELOW IS DEVELOPMENT LOG INFORMATION:
  📅 Development Timeline

Late 2023 - Foundation

November 2023 - Initial Release

• ✅ Core looping engine with record/play/overdub
• ✅ Basic undo/redo functionality
• ✅ 60-second loop capacity
• ✅ Real-time audio processing
• ✅ VST3 format support

December 2023 - MIDI Control

• ✅ MIDI learn functionality for hardware controllers
• ✅ Support for footpedals and control surfaces
• ✅ Right-click MIDI learn on all buttons
• 🐛 Fixed: MIDI mappings not persisting between sessions

Early 2024 - Quality & Performance

January 2024 - Audio Quality Improvements

• ✅ Crossfade system for seamless layer transitions
• ✅ Eliminated clicking artifacts during undo/redo
• 🐛 Fixed: Buffer overflow causing crashes during long recordings
• ⚡ Improved: Memory efficiency in undo/redo stack

February 2024 - Musical Features

• ✅ "Echo Stop" - Musical reverb tail when stopping loops
• ✅ Toggle for immediate vs. gradual stop behavior
• ✅ Preserves musical flow in live performances
• ✅ Rapid-fire restart capability (can interrupt stop tail)

March 2024 - Advanced Loop Control

• ✅ "Back 5" button - Undo 5 layers at once
• ✅ "Bring It Back" button - Redo all layers instantly
• ✅ Level controls for loop and input signals
• ✅ Smooth parameter automation without clicks

Mid 2024 - Professional Features

April 2024 - Project Management

• ✅ Save/load loop projects with full history
• ✅ Custom .undoloop file format
• ✅ Preserves all undo/redo layers
• ✅ Cross-session workflow support

May 2024 - Visual Feedback

• ✅ LED status indicators for all states
• ✅ Diamond progress indicator showing loop position
• ✅ Recording progress visualization
• ✅ Color-coded state display (rec/play/overdub)

June 2024 - UI Polish

• ✅ Custom background design
• ✅ Professional knob graphics
• ✅ Intuitive button layout
• ✅ Clear visual hierarchy

Late 2024 - Distribution Preparation

July 2024 - Licensing System

• ✅ Trial period implementation
• ✅ Secure activation system
• ✅ Protection against common bypasses

August 2024 - Beta Testing

• 🧪 Extensive testing with live performers
• 🧪 Stability improvements
• 🧪 Performance optimization
• 🧪 User feedback integration

September 2024 - Final Polish

• ✅ Documentation updates
• ✅ Installation streamlining
• ✅ Customer support preparation
• ✅ Website updates

October 2025 - Version 1.0 Release 🚀

October 7, 2025 - Production Release

• ✅ All systems tested and stable
• ✅ Licensing system operational
• ✅ Customer support channels active
• ✅ Available for purchase at undolooper.com (under development, site is BRAND NEW) and undolooper.itch.io

🎸 Current Features

Core Looping

• Record, Play, Overdub, Stop
• 60-second maximum loop length
• Unlimited undo/redo layers
• Seamless layer transitions

Advanced Controls

• Multi-layer undo (Back 5)
• Complete redo (Bring It Back)
• Loop level control
• Input level control
• Musical stop with reverb tail

MIDI Integration

• Full MIDI learn capability
• Hardware controller support
• Footpedal-ready
• Persistent mapping storage

Project Management

• Save/load complete loop projects
• Full undo/redo history preservation
• Cross-session workflow

Professional Quality

• Low-latency processing
• 24-bit/48kHz audio quality
• VST3 compatibility
• Stable and optimized

🎯 Design Philosophy

For Live Musicians UndoLooper is built specifically for live performance. Every feature prioritizes real-time reliability and musical flow over studio-oriented complexity.

Intuitive Workflow Right-click to learn MIDI, one button for each function, visual feedback at every step. No manual reading required.

Musical First Features like Echo Stop and crossfaded transitions preserve musicality. The technology serves the performance, not the other way around.

Rock Solid Extensive testing with real performers in live situations. Built to work when you need it most.

🔮 Roadmap

Under Consideration

• Additional visual themes
• Extended loop time options
• Cloud backup integration
• Mobile remote control
• MIDI CC parameter control

Feature requests welcome at undolooper.com

💬 Community

Join the conversation:

• Share your loops
• Request features
• Report issues
• Connect with other live loopers

Visit: undolooper.com

📊 Stats

Development Time: ~11 months
Major Features: 15+
Beta Testers: Multiple live performers
Platform: Windows/Mac VST3
Status: Production Ready ✅

Updates published.  FREE Version now available.