Azimutt

Azimutt is a database schema visualization tool that helps you understand and document complex database structures. It connects directly to your live database or imports SQL schemas to generate interactive entity-relationship diagrams. You can explore tables, columns, and relationships visually, making it easier to onboard new team members or audit legacy databases.

The tool supports PostgreSQL, MySQL, SQL Server, SQLite, and MariaDB, with a focus on performance even for schemas with hundreds of tables. It offers a web-based interface with no installation required for the hosted version. The project is open source under the MIT license, with the core built in Elixir and TypeScript.

Azimutt is best suited for developers, database administrators, and technical leads who need to reverse-engineer or document existing databases. The hosted version has a free tier with limitations on schema size, while self-hosting gives full control. It was created by Loïc Knuchel and has gained traction in the open source community for its clean, modern interface.