LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
DBConvert Studio - Database migration/ sync software for data conversion and replication.
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
Full Convert - Full Convert is industry standard for database migration. Supports 40 database formats and offers unparalleled speed and customization.
Kexi - Kexi | Calligra Suite
Intelligent Converters MSSQL-MySQL Sync - MSSQL-MySQL Sync is a program to synchronize data between MS SQL or Azure SQL and MySQL databases.