Free. Source code is included (C#). All programs are under MIT license.
Stream SuiteAutomates streaming tasks. With the click of a button, posts a Twitter message, posts a Discord message, sets the Twitch title to today's date, and runs a countdown timer for the stream pre-roll.
Changelog BotSends TortoiseSVN commit messages to a Discord channel.
Workshop UploaderProgram for uploading Steam Workshop items. Originally written for Quadrilateral Cowboy but can be repurposed for other games.
TGA ViewerViews TGA image files. Only TGA files. Absolutely no other image formats.
(Honestly you should use XNView instead)