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.
Hackable-devices : The hackable-devices project is coming from the willingness to make available to hackers and makers materials that correspond to them. Much more than ...
Mailtrain : Mailtrain is a self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). Mailtrain supports subscriber list management, ...
PlantUML : PlantUML is an open-source tool allowing users to create UML diagrams from a plain text language
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.