External links
ncurses bindings for crystal
http://xkcd.com/1692/
Binary mapping macro for crystal, used to deserialize binary data.
ANSEL Converter for Crystal
Port of drawille to Crystal
IRC Bot library written in crystal, using fast_irc.cr for message parsing
Noise generators implemented in Crystal
pomf-standard API to Imgur Gateway
Factorio Blueprint parser written in Crystal
Something that I made a long time ago and have put here for archiving/reference