The GRASS source code is written in portable ANSI-C and is fully POSIX compliant. It runs on most known flavors of UNIX including Linux, Solaris, and Mac OSX, as well as MS Windows with Cygwin. Development is well underway on a native MS Windows port, with an experimental version available for download now. GRASS has been run on everything from supercomputers to handheld PDAs. It is well adapted for life on a single-user workstation, a large multi-user system, or application server and thin clients, with mapset-level access control. Cross platform GUI toolkits are used to ensure a consistent user experience regardless of the hardware. The old GUI used Tcl/Tk, the new GUI is using WxPython. The GRASS Development Team and members of the user community have collected numerous screenshots on these pages. Click image to see larger version.

For details, see the Platform notes.

GNU/Linux

GRASS 6.2

GRASS 6.2.2 running on Ubuntu with Compiz-Fusion desktop effects
screenshot: Jáchym Čepický

Mac OSX

GRASS 6.0

GRASS Tcl/Tk GUI on Mac OSX
screenshot: Michael Barton

MS Windows

GRASS 6.3

After 25 years on UNIX: Welcome to GRASS 6.3 on MS Windows! screenshot: Martin Landa	The new SQL database attribute editor and wxPython based GUI screenshot: Martin Landa
Early GRASS 6.3-CVS running natively on MS-Windows (Tcl/Tk GUI) screenshot: M. Lennert

Handhelds

GRASS 6.0

GRASS running on a iPAQ/Linux PDA
photo: Jan Stankovic/Markus Neteler, ITC-irst

GRASS running on a Sharp Zaurus PDA
photo: Luis E. Menoyo, U.S. Geological Survey

GRASS 5.3

GRASS/QGIS on iPAQ: new pen-based interface
screenshot: Radim Blazek, ITC-irst

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