Beekeeper Studio : Open Source cross-platform SQL Editor and Database Manager. Use Beekeeper Studio to query and manage your relational databases, like MySQL, Postgres, ...
Cachet : Beautiful & simple service statuses. The open source status page system, for everyone.
TYPO3 : TYPO3 is an enterprise-class, Open Source CMS (Content Management System), used internationally to build and manage websites of all types, from small ...
Caire : Caire is a content aware image resize library
Imagine running your favorite Windows applications and drivers in an open-source environment you can trust. That's ReactOS. Not just an Open but also a Free operating system.