Sqitch - Sqitch is a standalone database change management application without opinions about your database engine, development environment, or application framework.
Sesame Database Manager - Lantica Software, LLC - Sesame, A Q&A-compatible Database Manager.
Liquibase - Database schema change management and release automation solution.
Sheep - Membership and events for SMEs and nonprofits
Flyway - Flyway is a database migration tool.
DbFace - DbFace is an online database application & report building tool.