Show HN: Auto DB Diagram – An ERD generator for relational databases

1 james_daniel3 0 6/19/2025, 7:43:58 PM github.com ↗

Recently, I was building a couple projects and I wanted to keep diagrams of their database schema as part of the documentation. I hated having to regularly change the database diagrams and was always worried that something would be slightly off.

Because of this, I started building this tool, which will connect to a database instance and diagram it when provided with the necessary information.

Currently supporting PostgreSQL and SQLite with plans to keep building, but I wanted to see what people think.

It can run with just a config file or prompt for the information it needs.

The project can be downloaded on homebrew and the code can be found here: https://github.com/jamesdaniel3/auto-db-diagram

Would love to get any feedback that people have, and bug reports and PRs are welcome!

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Show HN: Auto DB Diagram – An ERD generator for relational databases

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