JX-8P Editor & Librarian

Patch Base has the best Roland JX-8P editor and librarian available for Mac and iPad. Edit any parameter, organize patches, create random patches, and more.

Patch Base for:

Mac iPad

Try out Patch Base 4 for Mac free for 7 days. Every editor is available as a one-time purchase, or get them all with the All Access subscription — one monthly or annual price for the whole collection.

Download Patch Base 4 for Mac Buy Patch Base 4 + JX-8P Editor

Already own Patch Base 4 for Mac? Log in to buy the JX-8P editor at the editor-only price.

Download Patch Base free on the App Store, then unlock the JX-8P editor with an in-app purchase — or get every editor with All Access.

Patch Base for iPad in the App Store →

Free to download, and free 7-day All Access trial.

iPad Screenshots

The Roland JX-8P is a classic analog synthesizer from 1985 featuring two oscillators, high- and low-pass filters, two envelopes, two Chorus modes, and more. While it has a great sound and is capable of a wide array of tones, on-board editing is a bit of a pain with a single data slider and membrane buttons. Patch Base gives you easy editing of every voice parameter on the JX-8P, as well as a Tone Bank Editor to back up and organize your sounds.

Tone (Voice) Editor

Patch Base gives you quick, direct access to all of the parameters for JX-8P on one screen:

Edit both oscillators, the filter, amp, 2 envelopes, LFO, and Chorus in real-time
Copy and paste envelopes for easy editing
Get a bird's-eye view of the whole structure of a JX-8P sound
All of the "Patch" parameters are also on-screen to control Assign Mode, Unison Detuning, Pitch Bend, Portamento, and Aftertouch
Save Tone and Patch data for a sound to a single file on your iPad or Mac

Tone Bank Editor

Edit and organize the 32 Tones stored in your JX-8P's memory. Patch Base gives you direct access to the bank, so you can organize patches and back them up to files on your device.

Patch Librarian

Save patches and banks as files

Patch Base saves files as sysex that can be sent to your synth by Patch Base or any general-purpose sysex transfer app.

Organize your sounds

Create folders to organize your patches and banks on iPad or Mac.

iCloud integration

Optionally use iCloud to make your patch files accessible on any iCloud-connected device, and to sync between Patch Base on Mac and iPad.

Import sysex files

Import existing patch and bank sysex files. On Mac, drop your files into the browser. On iPad, import using iCloud or the Files app.

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