Roland· Family · 2 models

SP-404

Loud89/100

9 open-source firmware projects across 2 models of the Roland SP-404, from 9 creators. Most starred: doom-os, super-pads, and spEdit404. Latest release November 2026.

Firmware: 9
Models: 2
Creators: 9
Latest release: 17h ago

Models

Commits

Releases

323 commits and 26 releases in the last year

Activity · last 12 months

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Firmware 9

All Firmware Mod Tool

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doom-osv0.7.3-733D

SP-404MKII@klangfeld-labs17h

The Official DOOM OS repository

0 0 182

doom-os-midi-conductor

SP-404MKII@danielmcc12316h

Browser patcher and guide for the MIDI Conductor, a DOOM OS add-on that lets the SP-404MKII control external synths over DIN MIDI.

0 0 8

super-pads2.1.0

SP-404SX@MatthewCallis5d

Super Pads helps manage samples on a SP-404SX.

0 0 110

dm-404v0.1.5

SP-404MKII@nickpetty2w

An SP-404MKII emulator: Roland's own firmware (bring your own) on an emulated i.MX RT1060 in QEMU, with a hardware-style app and a DAW plugin

0 0 7

ptn2midi

SP-404SX@TylerOderkirk16h

Export your Roland SP-404SX samples and patterns to MIDI and SoundFont files

0 0 14

spEdit404

SP-404SX@bobgonzalez16h

spEdit is a tool for modifying and creating binary pattern files for the Roland SP-404SX.

0 0 23

open404v0.1.1

SP-404MKII@iare-digital1mo

An open-source, cross-platform Go library, toolkit, and CLI for the **Roland SP-404MKII** creative sampler and effector.

0 0 0

tallfree2026.10.06

SP-404MKII@Mudb0y4w

Talking custom firmware for the Roland SP-404MKII

0 0 8

SparkyMK2v0.7.3

SP-404MKII@TuscanPL1mo

Feature matched cross-platform app for the Roland SP404-MKII

0 0 15