WordCheatr is designed to get you "unstuck" when playing word games. WordCheatr has two modes:
1) Solver: If you know the letters for a few slots of a word, Solver can help you determine which words in its 175,000 word database will satisfy your requirement. This is especially useful for crossword puzzles and popular board games.
2) Finder: Finder can help you assemble all possible words that can be spelled with a given set of letters.