VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
foobar2000 - An advanced freeware audio player for the Windows platform.
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...