BWTC32Key

An open-source file compression program I wrote in vanilla JavaScript, which may be useful for use in your games because instead of outputting a binary file, it uses Base32768 to store the compressed (and encrypted if you use encryption [the encryption happens after the compression.) data as a very efficient text representation, which might be useful for making passwords for sharing user or save data like is done in Cookie Clicker and many retro games.

Now featuring an OS-tan of it because why not:

Now fixed in many ways!

A more detailed writeup:
http://fileformats.archiveteam.org/wiki/BWTC32Key