Open DBDiff - A database comparison tool for Microsoft SQL Server 2005+ that reports schema differences and...
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Redgate SQL Data Compare - Use Redgate SQL Data Compare to compare and synchronize static, lookup, and reference data in your SQL Server database - try it free
DbSchema - DbSchema - Visual Database Design & Management Tool
TiCodeX SQL Schema Compare - SQL Schema Compare supports Database schema compare for MS-SQL, mySQL and Postgres and runs on Windows, Linux and MacOS
SchemaSpy - SchemaSpy is a Java-based tool (requires Java 5 or higher) that analyzes the metadata of a schema...