DBeaver - DBeaver - Universal Database Manager and SQL Client.
MySQL - The world's most popular open source database
DataGrip - Tool for SQL and databases
Datahike - A durable datalog database adaptable for distribution.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
MarkLogic Server - MarkLogic Server is a multi-model database that has both NoSQL and trusted enterprise data management capabilities.