Open DBDiff - A database comparison tool for Microsoft SQL Server 2005+ that reports schema differences and...
dbForge SQL Tools - SQL Server tools for SQL database development
DataWeigher - The DataWeigher is the tool to compare and synchronize data.
SQL Admin Toolset - Database Administration for SQL Server - Database administrators need simple and quick ways to manage their SQL Server environment.
Replicator - Easily replicate database table data - even with heterogeneous databases.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.