DBConvert Studio - Database migration/ sync software for data conversion and replication.
MySQL - The world's most popular open source database
Intelligent Converters MSSQL-MySQL Sync - MSSQL-MySQL Sync is a program to synchronize data between MS SQL or Azure SQL and MySQL databases.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
ESF Database Migration Toolkit - ESF Database Migration Toolkit enables transfer of data between various database formats without writing any scripts.
SQLite - SQLite Home Page