You can download Crystal in a standalone .tar.gz file with everything you need to get started.

The latest files can be found on the Releases page at GitHub. Nightly builds are available as well at

Download the file for your platform and uncompress it. Inside it you will have a bin/crystal executable.

To make it simpler to use, you can create a symbolic link available in the path:

ln -s /full/path/to/bin/crystal /usr/local/bin/crystal

Then you can invoke the compiler by just typing:

crystal --version