HeidiSQL
HeidiSQL is a free, open-source graphical database management tool designed to administer MySQL, MariaDB, PostgreSQL, and Microsoft SQL Server databases. It runs on Windows and can connect to local or remote servers, including through SSH tunnels, enabling secure access to databases behind firewalls.
Its interface supports multiple sessions in tabs and includes a SQL editor with syntax highlighting, code completion,
Connectivity relies on the respective database client libraries, and HeidiSQL provides built-in support for encrypted connections
Platform availability and licensing: HeidiSQL is primarily a Windows application, distributed as an installer or portable