Kernan is a second-generation reference interpreter for Grace written by Michael Homer. It operates on all platforms, either natively on Windows or under Mono elsewhere. Kernan supports the core of Grace 0.7.0 – except that type annotations are not checked either statically or dynamically.

A zip file (<1MiB) with all of the necessary files ready to run is available. It includes a “grace” shell script wrapper for Unix-like platforms, and a command-line Grace.exe executable.

For users on Mac OS X, a standalone disk image and application (~270MiB) with Mono included is also available. The application launches a minimal GUI interface, and a command-line entry point is available as

The source code is available with git clone

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