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FujiNet Go

FujiNet Go

Atari 8-bit computers

The Atari 400, 800, XL, XE and 5200 in your pocket, with FujiNet built in.

FujiNet Go 800 v1.3.0 Released August 8, 2026 Atari, 1979By mozzwald (Mantis Moon Labs)

Download and install Source code Also on Desktop

Screenshots

Phone

Tablet

The large-screen layout: joystick, console keys and a full Atari keyboard around the screen

Features

  • Machines: 400/800, 1200XL, 800XL, 130XE (default), 320XE Compy and Rambo, 576XE, 1088XE, XEGS and the 5200
  • On-screen Atari keyboard with SYM, inverse and sticky modifiers, and a split layout in landscape
  • Touch joystick (4- or 8-way), Bluetooth and USB controllers per port, mouse, paddles and Koala Pad
  • Local .atr disks, .car cartridges and .xex programs, with disk swapping
  • NTSC filter and artifacting, HSIO, SAM speech and a modem
  • Foldable and large-screen layouts; FujiNet web UI at 127.0.0.1:8000

BIOS ROMs

Nothing to download

AltirraOS and Altirra BASIC are built in. Nothing to download; your own Atari ROMs can be picked in Settings.

  • Built in: AltirraOS and Altirra BASIC, © Avery Lee, freely redistributable

Download and install

FujiNet Go 800 1.3.0, released August 8, 2026. Release notes

Phone or tablet

Android 8.0 or later.

Download FujiNet-Go-800_v1.3.0.apk

35.5 MB

  1. Open the downloaded APK from your notifications or the Files app.
  2. If Android asks, allow your browser or Files app to install unknown apps, then go back and tap Install.
  3. Start FujiNet Go 800.

Not on Google Play yet, so updates are installed the same way: download the new APK and install it over the old one.

Chromebook

On a Chromebook with Google Play enabled, download the APK and open it from the Files app; ChromeOS installs it like a phone.

Or install from a computer over USB:

adb install FujiNet-Go-800_v1.3.0.apk
Every file in this release, with SHA-256 checksums
FileForSizeSHA-256
FujiNet-Go-800_v1.3.0.apk Android 35.5 MB c99b43d5669a409d766494c04733cb71b7f50617b7eb751828ce307f3e39fbc9

Built on

FujiNet Go 800 is free software (GPL-3.0). It stands on these projects:

  • Atari800 GPL-2.0-or-later

    Emulator core (fork github.com/mozzwald/atari800, android). The Atari800 development team

  • AltirraOS and Altirra BASIC Permissive (see the Altirra ROM notice)

    Free OS and BASIC ROMs. Avery Lee

  • fujinet-firmware (fork) GPL-3.0-or-later

    The FujiNet device, Android branch. The FujiNet contributors

  • 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

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