openMSX development builds for macOS, Windows, Android & OpenDingux

The openMSX emulator allows you to emulate a variety of MSX homecomputer systems, and a plethora of extensions that have been created for it throughout the years. It's popular in various communities for its versatility. For instance, homebrew developers like it for its debugger. openMSX is also one of the preferred emulators for Tool-Assisted-Speedruns of MSX games

As it may take a while between releases, during which the team might add several new features they'd like user input on, several supporters of openMSX teamed up to provide a centralised location where endusers can easily download the latest development builds openMSX.

More about Builds » More about History »



Don't know if you have a 64- or 32-bit system? Just get the x86 (32-bit) builds as they should work on both 64- and 32-bit systems.
Installer builds end in ''.

These builds are provided by Vampier.

Windows x64 64-bit Builds » Windows x86 32-bit Builds » Windows Debugger Builds »


While in the archives you might find old PowerPC builds, the current builds are x86_64 builds.

The latest builds are provided by Niek Vlessert.

macOS Builds » macOS Debugger Builds »


The Android port of openMSX was originally started by Alex Wulms. The builds are currently provided by Manuel ‘Quibus’ Bilderbeek.

Android Builds »


Builds for OpenDingux, a Linux distribution for the Dingoo A320 and the GCW-Zero handhelds.

Dingoo A320 is no longer supported with new builds; the last available build is openmsx-0.12.0-68-g2e1191c. Builds for OpenDingux on the GCW-Zero are still maintained though, and are the files ending in .opk in the OpenDingux builds directory.

All available builds are provided by Manuel ‘Quibus’ Bilderbeek.

OpenDingux Builds »


FiXato created his openMSX Builder project on the 10th of March 2010. Since creating an environment for building development builds and compiling them can be too time-consuming and can be a bit daunting to the everyday user, he created his tool to periodically create development builds on macOS (which at the time was still called OS X), and upload them to (t)his website for regular users to download and run.

At first it was just macOS builds, but a few days after launch, Vampier joined forces by providing Windows builds.

In November 2012 development builds for (Open)Dingux, for the Dingoo A320 handheld, and in January 2013 dev builds for Android, were added as provided by Manuel ‘Quibus’ Bilderbeek.

As of September 2016, Niek "niekniek" Vlessert took over from FiXato as provider of macOS builds. OpenDingux builds were also recontinued by Quibus, however no longer for the Dingoo A320, but for the GCW-Zero handheld instead.


OpenDingux builds

For quite some time there haven't been any openMSX for OpenDingux builds anymore, because the Dingoo A320 is no longer supported by the emulator. However, as of today, Manuel ‘Quibus’ Bilderbeek will be providing us with new OpenDingux builds for the GCW-Zero handheld instead. These will be available in the same directory as where the old Dingoo A320 builds were kept, namely the OpenDingux builds directory. GCW-Zero builds are easily recognised by their own description, openMSX Standalone OpenDingux binary for GCW-Zero, and their file extension .opk.

Redesign and new maintainer of macOS builds

Since FiXato no longer uses his MacBook Pro on a daily basis, the regular macOS builds have been rather lacking, to say the least. We're pleased to announce though that with the release of this new (simpler) frontend website, Niek "niekniek" Vlessert will take over from FiXato as provider of macOS builds. FiXato will still provide the hosting and maintenance of this site to provide the builds though, as well as the Twitter integration that announces new builds via @openMSX_Builder.

New as well will be the openMSX Builds Archive which runs on TransIP's Stack Storage. With the current archive of builds nearing close to 20 GiB of storage space (and that is after several prunings in the past to free up disk space), FiXato wanted to offload this to a different location, especially since the older builds were only incidentally used. Unfortunately the interface provided by Stack is only available in Dutch at the moment, but we believe the interface is fairly straightforward enough still to get what you need. The recent builds will continue to first be available via the website though, older builds however will most likely be only available from the builds archive.

Should you need help with the builds archive, you can of course contact the openMSX team via one of the usual contact methods.