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SquareWave Studio/ EP-PatchStudioDownload Free
Stop Managing Samples. Start Making Music.

Back Up, Organise and Prep Samples for Your EP Devices

  • EP-133 K.O. II
  • EP-40 Riddim
  • EP-1320 Medieval

One factory reset or lost project can cost you weeks. Back up every project on your EP, keep your sample slots in order and get new sounds ready to send in minutes.

Download FreeBuy Pro · From $29 for EP-PatchStudio

Now on iPhone and iPad: Stem SplitterBeta

The Sample Editor is always free. Try every Pro tool free for 14 days. No sign-up, no card.

Over 1,000people have used EP-PatchStudio

"I actually bought it even though Joe kindly offered me a free licence for helping test it. I decided it was worth the money as I'll definitely be using it."

RoyB, OP Forums · EP-133 K.O. II and EP-40 Riddim
  • Free to MakeThe editors never expire. No account, no ads.
  • 14 Days of ProUnlocks when you install. No sign-up, no card.
  • Pay Once, Keep ItA lifetime licence, with a 14-day money-back guarantee.
Inside the App

EP-PatchStudio on Your Phone and Tablet

Real screens from the app on iPhone, iPad and Android. The Auto-Sampler needs a computer.

EP-PatchStudio on iPhone: the Stem Splitter with a song split into vocals, drums and bass stems, each with play, mute and solo controls.

The Stem Splitter on iPhone (Pro). Split a song, then chop and send the parts you want.Beta

EP-PatchStudio on iPad: the Sample Editor in Multisample mode, with seven samples mapped across keyboard zones from C2 to C5.

The full Sample Editor on iPad, here mapping a multisample for the EP-40.

EP-PatchStudio on Android: the Batch Processor with twelve drum samples processed as one-shots.

The Batch Processor on Android (Pro): a folder of drums prepped in one pass.

Back Up Projects Before You Change Things

One factory reset can wipe weeks of work. A full device backup takes about two minutes, and you can restore to the same EP or a different one.

Pro · Included in Your 14-Day Trial
  • One Project or the Whole Device

    Back up a single project, all your projects or every sample slot on the device.

  • A File You Keep

    Each backup is a file saved where you choose, samples included.

  • SmartRestore

    Skips samples already on the device, so restores are quicker and write less.

Free vs Pro

Make Sounds Free. Pro Runs the Device.

Everything you make sounds with is free, with no time limit. Pro adds the device workflow, and you get all of it free for the first 14 days.

Free

$0always

  • Sample Editor: trim, normalise, fade, reverse
  • Time stretch, pitch shift, compressor, gate, limiter and EQ
  • Auto-chop and transient detection
  • EP-40 multisamples: all five playback modes, up to eight zones
  • Device Info: storage, firmware and sample counts
  • macOS, Windows, Linux, Android, iPhone and iPad, with lifetime updates

Pro

From $29once

  • Everything in Free
  • Send to device in one click, and batch operations
  • Browse, upload, download and delete files on the device
  • Full device and per-project backup and restore
  • Batch Processor: many files in one pass
  • Stem Splitter: private, offline stem separation on computers, and on phones and tablets with about 6 GB of memory Beta
  • Project Library, Project Sets, Sample Packs and Insights
  • Timeline editor and MIDI export
  • Auto-Sampler for hardware synths and VSTs
  • Priority email support
Every Feature, Row by Row
FeatureFreePro
Sample editing
Waveform view
Trim, normalise, fade, reverse
Time stretch and pitch shift
Compressor, gate, limiter, EQ
Auto-chop and transient detection
Batch Processor (many files in one pass)
Stem Splitter (Beta): private, offline stem separation on computers, and on phones and tablets with about 6 GB of memory
Multisample creation
Create multisamples (manual zones)
All five playback modes
Up to eight zones
Auto zone mapping from metadata and filenames
Device management
Device Info: storage, firmware and sample counts
Browse device file system
Upload, download and delete files
Send to device (one click)
Batch operations
Backup and restore
Full device backup
Per-project backup and restore
Project management
Browse device projects
Inspect project contents
Project library (unlimited local storage)
Project Sets: load up to nine projects in one go
Sample Packs: tagged sample bundles to zip or send
Insights and an annual Wrapped from your library
Timeline editor
MIDI export
Auto-Sampler
MIDI auto-sampler
Record from hardware synths and VSTs
Platform and support
macOS, Windows, Linux
Android, iPhone and iPad
Lifetime updates
Priority email support

Pay What You Want, Once

Every tier gets the same Pro tools. Pick what feels fair for you, from $29. No subscription.

EP-PatchStudio Pro

Lifetime Licence

Support EP-PatchStudio Development

Pay what it's worth to you. Every purchase keeps this project alive.

$35
Popular

✓ What most people pay. Thank you.

Pay once. Your Pro licence is yours to keep, with lifetime updates. No subscription, no expiring licences, no recurring charges.

14-day money-back guarantee.

Secure checkout powered by LemonSqueezy & Stripe

What You Get

  • Every Pro tool, whatever you pay
  • Up to five devices on one licence
  • Lifetime updates, no subscription
  • Works offline after the first activation
  • 14-day money-back guarantee

Later, after the OP launch: EP + OP, Pro for EP-PatchStudio and OP-PatchStudio in one order. Not on sale yet. Get Notified

Questions

Before You Buy

What's Free?

The Sample Editor, multisamples for the EP-40 and drum kits, always. Pro adds device management, backup and restore, the Auto-Sampler and the Batch Processor. Try every Pro tool free for 14 days. No sign-up, no card.

Is this a subscription?

No. The core tools are always free. Pro is a one-off licence: pay what you want from $29, once, with lifetime updates.

What's the difference between this and TE's EP Sample Tool?

TE's EP Sample Tool runs in the browser. EP-PatchStudio is a native app that works offline. The Sample Editor, multisamples for the EP-40 and drum kits are always free. Pro adds the device workflow: one-click backups, batch transfers, the Auto-Sampler and the Batch Processor.

What if I don't like it?

There is a 14-day money-back guarantee. See the refund policy for the details.

Does it work with my device?

EP-PatchStudio supports the EP-40 Riddim, EP-133 K.O. II and EP-1320 Medieval. It builds multisamples for the EP-40, and looped samples are EP-40 only. The EP-133 doesn't play multisamples. Device management works with all three.

Why pay what you want?

I'd rather you use the software than skip it because of price.

Traditional pricing forces everyone into the same box. Pay-what-you-want lets you pay what feels fair for your situation. Everyone gets the same software with every Pro feature, whatever they pay. You own it forever.

The price difference is about supporting development, not unlocking capabilities.

Mac, Windows, Linux… phones?

Yes to all of it. EP-PatchStudio runs on macOS, Windows and Linux, plus Android and iPhone/iPad. A licence bought at squarewave.studio works on up to five devices: the desktop apps, the Android APK and the iPhone and iPad app (enter the key in Settings > Licence). On iPhone and iPad you can also buy Pro in the app. It unlocks on your other devices signed in to the same Apple account: tap Restore purchases in the Licence tab. Want Pro on your computer too? Email support@squarewave.studio with your App Store order ID and I'll send you a desktop licence at no extra cost.

Connects over USB. On a USB-C iPhone or iPad, a USB-C data cable is all you need (charge-only cables won't work). On a Lightning iPhone or iPad, use Apple's Lightning to USB 3 Camera Adapter with its power socket plugged in, and a USB-A to USB-C data cable from the adapter to your EP. It works, but Lightning connections can drop now and then, which the app can't fix, so check it connects in Device Info first, which is free.

What if I need help?

Free users can get help via the Discord community. Pro users get email support, and I typically respond within 24 hours, often faster. It's just me, so you're talking to the person who actually built the thing.

Can I export my work?

Yes. Samples, multisamples and drum kits export as files you keep, for free. Backups need Pro (Backup & Restore). Your work is yours. Nothing is locked into the app.

Is there annoying DRM or copy protection?

No. Payments and licensing run through LemonSqueezy. You get a licence key by email when you purchase. Enter it once to activate and you're done. It does a quick online check on first activation, and after that the app works completely offline.

Still stuck? Join the Discord community or read the documentation.

Back Up Your EP Today

Download it, plug in your EP and try every Pro tool for 14 days. If it earns its place, pay once and keep it.