phpMyAdmin is a PHP-based web interface to manage MySQL and MariaDB databases, including schema changes, user privileges, import/export, and SQL execution.

7.9k stars3.6k forksGPL-2.0last commit Actively maintained
Valentina Studio is a multi-database management and administration tool that connects to PostgreSQL, MySQL/MariaDB, SQLite and Valentina DB to run SQL queries, manage schemas, design ER diagrams, and build and export reports and visualizations.
phpMyAdmin is a PHP-based web interface to manage MySQL and MariaDB databases, including schema changes, user privileges, import/export, and SQL execution.

7.9k stars3.6k forksGPL-2.0last commit Actively maintained
Adminer is a full-featured, single-file PHP database management tool for administering MySQL, PostgreSQL, SQLite, MS SQL, and more, with optional plugins for extra backends.

7.8k stars1.2k forkslast commit Actively maintained
Open-source, cross-platform database client for SQL and NoSQL engines (MySQL, PostgreSQL, SQL Server, MongoDB, Redis, SQLite, etc.), available as desktop apps, web app and Docker.

7.3k stars468 forksGPL-3.0last commit Actively maintained
CloudBeaver is an open-source, web-based database manager for teams, offering a browser SQL editor, data browsing/editing, and administration for many databases.

5.1k stars558 forksApache-2.0last commit Actively maintained
WhoDB is a lightweight database management UI for SQL and NoSQL systems, with schema exploration, query scratchpad, data editing, exports, and optional AI chat to SQL.

5k stars236 forksApache-2.0last commit Actively maintained
pgAdmin 4 is an open source web and desktop GUI for administering and developing PostgreSQL databases, including query tooling, object management, and maintenance tasks.

3.8k stars880 forkslast commit Actively maintained
Visual DB is a browser-based database client for exploring schemas, running SQL queries, and managing multiple databases with a modern UI and team-friendly sharing.

Activity unknown
WebDB is a lightweight web database client for browsing, querying, and managing SQL databases from a modern browser-based UI.
Activity unknown
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 6 of 8 shipped a commit in the last six months. Licences in this list: GPL-2.0, GPL-3.0, Apache-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Relational Databases.