Flagsmith - Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Open DBDiff - A database comparison tool for Microsoft SQL Server 2005+ that reports schema differences and...
ClearFlask - Open-source Product Feedback Tool with a Public Roadmap and Announcements.
DataWeigher - The DataWeigher is the tool to compare and synchronize data.