EP-PatchStudio vs the Official EP Sample Tool: What Each One Is For
Teenage Engineering's EP Sample Tool and EP-PatchStudio do different jobs. Here's an honest breakdown of what each is good at, so you know which to reach for, and why most people end up using both.
If you own an EP-40 Riddim, EP-133 K.O. II or EP-1320 Medieval, you've probably already met Teenage Engineering's EP Sample Tool, the official browser app for moving samples on and off your device. So where does EP-PatchStudio fit in, and do you need both?
Short version: they're built for different jobs. The EP Sample Tool is the official way to shift samples and back up projects. EP-PatchStudio is for making sounds and organising your work: multisamples, batch editing, a searchable project library. Most people use the Sample Tool for quick transfers and EP-PatchStudio for everything else. Here's the honest breakdown.
What the official EP Sample Tool does well
The EP Sample Tool is free, runs in your browser over WebMIDI, and is the first-party option, so it always tracks the latest firmware. It's genuinely good at moving samples on and off your device with drag-and-drop, deleting samples and tidying slots, backing up and restoring projects and your whole device, and moving files between units or sharing sample banks with friends.
If all you need is to drop a few WAVs onto your device or take a backup before a gig, it does the job and you don't need anything else.
Where EP-PatchStudio comes in
EP-PatchStudio is a cross-platform app, on Windows, Mac, Linux, iOS and Android, that focuses on the things the Sample Tool doesn't cover: making sounds, and managing a growing library.
The big one is multisample creation for the EP-40. Map an instrument across the keyboard with root notes and zones. The Sample Tool doesn't build multisamples, and this is the main reason people pick up EP-PatchStudio. (See the multisample guide.)
There's also a Batch Processor for normalising, trimming and converting sample rate and bit depth across a whole folder at once, so you can optimise a pack down to device-friendly settings, or push it the other way for crunchy lo-fi.
And there's a project library you can actually read. The Project Viewer shows the real sample names from each project, not generic slot numbers, and you can click any pad to hear it played back on your computer. Save device projects to a local library you can search by name and tag.
On top of that: an Auto-Sampler that records a hardware or software instrument automatically, note by note, and DAW export, so you can pull patterns out as MIDI or bounce audio stems to carry on in Ableton, Logic or Reaper.
Side by side
| Job | EP Sample Tool | EP-PatchStudio |
|---|---|---|
| Upload / download samples | yes | yes |
| Back up & restore projects | yes (.pak/.ppak) |
yes (.pak/.ppak) |
| Create EP-40 multisamples | no | yes |
| Batch edit / convert audio | no | yes |
| Lo-fi / optimise sample packs | no | yes |
| Named, previewable project library | no | yes |
| Auto-sample an instrument | no | yes |
| Export MIDI / audio stems to a DAW | no | yes |
| Official, first-party | yes | no |
So which should you use?
Both, honestly. They're complementary. Reach for the EP Sample Tool when you want the official route for a quick transfer or a straight backup, especially right after a firmware update. Reach for EP-PatchStudio when you want to build a multisample, batch-process a pack, browse and preview your projects by name, or get your patterns into a DAW.
There's no lock-in either way. Samples are samples, and you can keep using the Sample Tool alongside EP-PatchStudio whenever you prefer.
Try it
EP-PatchStudio is free to download, with a Pro trial included. If you've hit the limits of what the Sample Tool can do, it's the natural next step.
Download EP-PatchStudio free →
EP-PatchStudio is an independent app from SquareWave Studio. It is not affiliated with or endorsed by Teenage Engineering AB. "EP Sample Tool" and the EP device names are referenced for compatibility only.