DBeaver - DBeaver - Universal Database Manager and SQL Client.
gitSQL - Database source control for SQL Server, PostgreSQL
DataGrip - Tool for SQL and databases
yuniql - Free and open source schema versioning and migration tool made with .NET Core. Plain SQL, arrange versions in ordinary folders and seed your data from CSV via stand-alone CLI (no CLR needed), Azure Pipelines, Docker or ASP.NET Core code.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Flyway - Flyway is a database migration tool.