Steam Inventory Helper - Steam Inventory Helper is a free browser extension for Google Chrome that adds a big amount of new features into the Steam trade-offer system & Steam store functionality.
Restream - Restream is your live streaming companion. Easily broadcast your content live from your browser to 30+ platforms at the same time.
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.
YouTube Mobile Live Streaming - A new chapter in YouTube’s live stream, on mobile
Steam Tools Hub - A set of Steam related WebApps built around trading cards, emoticons and backgrounds.
Mux Live Streaming API - A simple API to powerful live video streaming