Veezoo - Ask Natural Language questions against your SQL Database
DBeaver - DBeaver - Universal Database Manager and SQL Client.
SQL School - Data analysts training data analysts
DataGrip - Tool for SQL and databases
Arctype - Free SQL Client for developers and teams. Available for Mac, Windows, Linux, and Web.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.