Valeton GP-200 Editor for Windows, Mac and Linux
Updated
Turning knobs on the GP-200 itself works, but building a preset on a small screen is slow. A software editor shows the whole signal chain at once, lets you save presets as files and share them. This guide compares the two ways to edit the GP-200 from a computer: Valeton’s official desktop app and Preset Forge, a free editor that runs in the browser.
What a GP-200 editor does
Every GP-200 preset is a chain of eleven blocks: PRE, WAH, DST, AMP, NR, CAB, EQ, MOD, DLY, RVB and VOL. Each block holds one effect with up to fifteen parameters. An editor lets you switch blocks on and off, pick the effect type, set the parameters and change the order of the chain.
Presets are stored as .prst files. An editor reads and writes these files, so you can back up your sounds, download presets from other players and keep different versions of a tone.
The official Valeton editor
Valeton publishes its own GP-200 editor as a desktop application for Windows. It talks to the pedal over USB and is also the tool for firmware updates, so keep it at hand even if you edit your presets elsewhere.
Outside Windows the choice gets thin: there is no native Linux build, and running the Windows app under Wine or in a virtual machine is fiddly when a USB MIDI device is involved.
Preset Forge: a GP-200 editor in the browser
Preset Forge is a free, unofficial editor that runs in the browser. There is nothing to install, it works on Windows, macOS, Linux and ChromeOS, and after the first visit it also works offline as a PWA.
- 1.Load a .prst file by dragging it onto the editor, edit every block and parameter, and save it back as a .prst file.
- 2.Connect the GP-200 over USB to edit live: every change is sent to the pedal straight away (Chrome or Edge).
- 3.Pull a preset off the pedal with “Load” and write it back to a slot with “Save to [Slot]”.
- 4.Import Line6 HX Stomp .hlx presets and convert them to GP-200 format (experimental).
- 5.Browse the community gallery and download presets, filtered by amp model, effect or style.
- 6.Build setlists with timed cue points that switch presets on the pedal during a song.
Which one should you use?
Use Valeton’s app for firmware updates and if you are on Windows and happy with it. Use Preset Forge if you are on a Mac, Linux or a Chromebook, if you want to edit on a computer where you cannot install software, or if you want to share presets and use setlists.
Both work with the same .prst files, so you can switch between them at any time.
Getting started in five minutes
- 1.Open preset-forge.com/editor in Chrome or Edge.
- 2.Connect the GP-200 with a USB cable and click “Connect GP-200”. Allow MIDI access when the browser asks.
- 3.Click “Load” to pull the current preset from the pedal, or drop a .prst file onto the page.
- 4.Change effects and parameters — with the pedal connected you hear each change immediately.
- 5.Save with “Save to [Slot]” on the pedal, or with “Save preset as file” on your computer.