Download Meriz
The desktop version has the same features as the online editor and can work offline. Your files stay on your computer in .meriz.jsonformat, readable by both versions.
For your operating system
v1.0.1, published on 18 October 2026Each button downloads its file directly. Links follow the latest published release and update automatically.
Installer .exe, the usual choice.
Download for WindowsFor classroom deployments, an .msi package is also available.
Disk image .dmg. Choose Apple Silicon for M1 and later Macs, or Intel for older Intel-based models.
Check the Apple menu’s About This Mac window to identify your chip.
.AppImage runs directly, without installation.
Download for LinuxOr use .deb packages for Debian and Ubuntu, or .rpm packages for Fedora and openSUSE.
All files, including older versions, are available on the releases page.
First launch
The application does not have a verified Windows or Apple publisher identity. Windows and macOS may display a warning at first launch. Check that you downloaded it from the official Meriz release page before continuing.
The same file everywhere
A model saved in the desktop version opens in the browser, and vice versa. You can move freely between both versions.
Updates
From version 1.1.0 onwards, Meriz installs updates at startup. If you use a 1.0.x version, install the latest version once to enable this. Your files are kept.
Source code
Meriz is free software under the AGPL 3.0 licence. You can read its source, build it yourself and contribute improvements.