Open DBDiff - A database comparison tool for Microsoft SQL Server 2005+ that reports schema differences and...
MssqlMerge - MssqlMerge is an easy to use diff & merge tool for Microsoft SQL Server databases.
DataWeigher - The DataWeigher is the tool to compare and synchronize data.
TiCodeX SQL Schema Compare - SQL Schema Compare supports Database schema compare for MS-SQL, mySQL and Postgres and runs on Windows, Linux and MacOS
Replicator - Easily replicate database table data - even with heterogeneous databases.
DBComparer - Free Compare database tool - DBComparer 3.0 is a professional compare database tool for comparing Microsoft SQL Server 2008 (and 2005) database structure.