DBeaver : Free multi-platform database tool for developers, SQL programmers, database administrators and analysts. Supports all popular databases: MySQL, Postgr...
pg_chameleon : pg_chameleon is a MySQL to PostgreSQL replica system written in Python 3. The tool can connect to the mysql replication protocol and replicate the dat...
migra : migra is a schema comparison tool for PostgreSQL.
It's a command line tool, and Python library. Find differences in database schemas as easily as runn...
Dex : Dex is a MongoDB performance tuning tool that compares queries to the available indexes in the queried collection(s) and generates index suggestions b...
MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.