Quackle - Open-source word game similar to Scrabble. Features a board editor, analysis tools, and artificial intelligence that rivals the best players in the world!
SmartFeud - SmartFeud takes word games to the next level.
Crosswords Arena - Word game, multiplayer and computer players
Lexica - An open source word-search game.
Lit CSS Framework - World's smallest responsive CSS framework (398 bytes!)
Tanglet - Tanglet is a single player word finding game based on Boggle.