FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
Magical Jelly Bean Keyfinder - The Magical Jelly Bean Keyfinder is a freeware utility that retrieves your Product Key (cd key) used to install windows from your registry. It also has a community- updated configuration file that retrieves product keys for many other applications.
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...
Product Key Explorer - Product Key Explorer is a key inventory and recovery software designed for Windows. It's meant to help users recover, find, and backup their activation keys for more than nine thousand popular software programs... read more.
BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...
Mac Product Key Finder - Mac Product Key Finder is a simple tool for recovering lost product keys for mac applications.