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FujiNet Go

FujiNet Go Desktop

MSX

MSX, MSX2 and MSX2+ with FujiNet on the cartridge slot, no ROMs to hunt for.

FujiNet Go MSX v0.5.0 Released November 2, 2026 ASCII and Microsoft, 1983

Download and install Source code Also on Android

Screenshots

GNOME

FujiNet CONFIG running on the emulated MSX2
The debugger's VDP tab: nametable, patterns, sprites, palette and registers
The debugger's CPU & Memory tab: Z80 registers, flags and a live memory view

KDE

FujiNet CONFIG running on the emulated MSX2
The debugger's VDP tab: nametable, patterns, sprites, palette and registers
The debugger's CPU & Memory tab: Z80 registers, flags and a live memory view

Windows

FujiNet CONFIG on an MSX2, on Windows
The debugger's VDP tab: nametable, patterns, sprites, palette and registers
The debugger's CPU & Memory tab: Z80 registers and a live memory view

Features

  • MSX, MSX2 and MSX2+ machines on the free C-BIOS
  • Debugger: Tcl console, CPU & Memory, disassembly, VDP (TMS9918A, V9938, V9958), breakpoints, Slots & I/O, FujiNet
  • FujiNet web UI built into the app, plus a FujiNet console log
  • Import Disk, Cassette or Cartridge… puts media on the FujiNet SD folder
  • Joysticks on both ports, from keyboard or gamepad
  • Use the built-in FujiNet or an external one

BIOS ROMs

Nothing to download

C-BIOS, a free MSX BIOS, is built in. Nothing to download.

  • Built in: C-BIOS (MSX, MSX2, MSX2+), freely redistributable

Download and install

FujiNet Go MSX 0.5.0, released November 2, 2026. Release notes

Linux

Desktop
Package

Install with Flatpak (any distribution)

  1. Install Flatpak with your distribution's package manager if you don't have it yet.
  2. Add Flathub, which supplies the runtime, and the FujiNet Go repository: 
    flatpak remote-add --user --if-not-exists flathub \
    https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak remote-add --user --if-not-exists fujinet-go \
    https://fujinetwifi.github.io/fujinet-go-desktop-flatpaks/fujinet-go.flatpakrepo
  3. Install the GNOME edition (or swap gnome for kde): 
    flatpak install --user fujinet-go online.fujinet.go.msx.gnome

Windows

Installer Recommended

Windows 10 or 11, 64-bit. Installs for your user only and needs no administrator rights.

Download fujinet-go-msx-0.5.0-windows-setup.exe

14.6 MB

  1. Run the downloaded file.
  2. If Windows SmartScreen says it protected your PC, choose More info, then Run anyway. The app isn't code-signed yet.
  3. Start FujiNet Go MSX from the Start menu.

Portable zip

Nothing to install. Good for a USB stick or a locked-down PC.

Download fujinet-go-msx-0.5.0-windows.zip

19.6 MB

  1. Right-click the zip, choose Extract All…, and pick a folder.
  2. Open the folder and run the .exe inside.

macOS

macOS app

macOS 11.0 or later. For Macs with Apple silicon (M1 and later).

Apple silicon fujinet-go-msx-0.5.0-macos.zip · 13.0 MB
  1. Open the downloaded zip and drag FujiNet Go MSX into Applications.
  2. The first time, Control-click the app and choose Open, then Open again. (On macOS 15 and later: try to open it, then go to System Settings ▸ Privacy & Security and choose Open Anyway.)
  3. Or clear the download quarantine in Terminal: 
    xattr -dr com.apple.quarantine "/Applications/FujiNet Go MSX.app"
Every file in this release, with SHA-256 checksums
FileForSizeSHA-256
online.fujinet.go.msx.gnome.flatpak Linux · GNOME · Flatpak bundle 33.1 MB 4a4e8fe77f7fc9184411d33fb83fde073d29f52c5b24442f0b49590d558fa2d3
online.fujinet.go.msx.kde.flatpak Linux · KDE · Flatpak bundle 34.1 MB aa1ffeeb7fe085d0f52dae3945a432849e5ddc71d385cec7958694e2e51bd7b1
fujinet-go-msx-gnome-0.5.0-Linux.deb Linux · GNOME · .deb 9.7 MB a6fcf20b82b37de5809e353712bc7b8aaf20b2d97cb01188b19011fc6ede1b8b
fujinet-go-msx-kde-0.5.0-Linux.deb Linux · KDE · .deb 9.8 MB c88d3f651364c05df24661489cf16740db15f9fe61bd724cd85bd4d1a5bad982
fujinet-go-msx-gnome-0.5.0-Linux.rpm Linux · GNOME · .rpm 8.3 MB 60d61cdcdaac27509f63ab5cc7458b8443a7217b8f0e93c7a0179dd8c5e6755c
fujinet-go-msx-kde-0.5.0-Linux.rpm Linux · KDE · .rpm 8.3 MB de03d5669d2fc350679421eb44cdd44203933f8d2fb9f5f41b934b500409f2e9
fujinet-go-msx-gnome-0.5.0-Linux.tar.gz Linux · GNOME · .tar.gz 9.7 MB ac49b0d3158d7356ce88ecf495d74cde2cc8f93f26ede0d42e914de34bdfee77
fujinet-go-msx-kde-0.5.0-Linux.tar.gz Linux · KDE · .tar.gz 9.8 MB 4cc5a849be172419c0762c1b52eac8988617d84ae308b47c7dba5fef5289c3fd
fujinet-go-msx-0.5.0-windows-setup.exe Windows installer 14.6 MB ab992c29c98df62270a17663183bcfa47cd55f84221463685590e9758292365b
fujinet-go-msx-0.5.0-windows.zip Windows portable zip 19.6 MB 15fb4ef2c8c9a07b2dd6544a51c5dd43c6ebd8523a6acd9a24bb3a62a242c95e
fujinet-go-msx-0.5.0-macos.zip macOS · Apple silicon 13.0 MB f5e98ab46e1911ff2eca18de576a51b6a384f7ecacd07092d998f8a3db3ea79e

Built on

FujiNet Go MSX is free software (GPL-3.0). It stands on these projects:

  • openMSX GPL-2.0-or-later

    Emulator core (fork github.com/FujiNetWIFI/openMSX, feat/fujinet). The openMSX team

  • C-BIOS BSD-2-Clause

    Free MSX BIOS. BouKiCHi and the C-BIOS team

  • SDL2, Tcl, FreeType, libpng, Ogg/Vorbis/Theora, GLEW Zlib; TCL; FTL; libpng; BSD-3-Clause; MIT

    Libraries used by openMSX. Their respective authors

  • fujinet-firmware GPL-3.0-or-later

    The FujiNet itself, built into every app. Thomas Cherryhomes and the FujiNet contributors

  • Mbed TLS Apache-2.0

    TLS for FujiNet's network protocols. The Mbed TLS contributors

  • libssh, libsmb2, libnfs LGPL-2.1-or-later

    FujiNet's SSH, SMB and NFS protocols. Their respective authors

  • cJSON, expat MIT

    JSON and XML parsing in FujiNet. Dave Gamble; the Expat maintainers

  • SDL 3 Zlib

    Video, audio and gamepads. Sam Lantinga and the SDL contributors

  • GTK 4 and libadwaita LGPL-2.1-or-later

    The GNOME edition's interface. The GNOME project

  • Qt 6 LGPL-3.0-only

    The KDE edition's interface. The Qt Company and contributors

The full list of bundled code, versions and licences is in COMPLIANCE.md. Source code · All releases · Report a problem