Windows support for Node.JS scripts (daemons, eventlog, UAC, etc).
Returns true if the platform is Windows (and Cygwin or MSYS/MinGW for unit tests)
Free and Open Source messaging and emailing app that combines common web applications into one.
A "native-like" OS X, Windows, & Linux desktop app for Google Allo
UrBackup - Client/Server Open Source Network Backup for Windows, MacOS and Linux