Erdus

[MyrinNew]

🌍 An open-source universal ER diagram converter


Drag & drop → convert → copy SQL/Prisma instantly.



Every tool speaks a different schema language.


Moving from ER diagrams → SQL → Prisma (or JSON Schema) often means hours of manual rewriting and the risk of losing important details.


I built Erdus to change that — a universal converter powered by a strict Intermediate Representation (IR) designed to unify database models.





What Erdus does

• ERDPlus (old/new) ↔ IR
• IR → PostgreSQL DDL (ready for Supabase)
• IR → Prisma schema
• Loss report → transparently shows when features can’t be mapped (e.g. CHECK constraints in Prisma).

⚡ Runs 100% client-side: your files never leave your browser.





Why it matters

Whether you’re a student learning database design or a developer juggling multiple stacks, Erdus makes schema conversions:

• Consistent – no surprises between tools.
• Transparent – see exactly what’s preserved and what’s lost.
• Reproducible – one source of truth, everywhere.

And this is just the beginning — the roadmap includes:

• JSON Schema support
• Sequelize / TypeORM outputs
• Supabase policies & identity annotations
• MySQL / SQLite generators

Try it out

• GitHub: https://github.com/tobiager/Erdus
• Live demo: https://erdus-inky.vercel.app/
• Product Hunt: https://www.producthunt.com/posts/erdus

Screenshots













Join the journey

Erdus is open source, and this is only the first step.


If the idea resonates with you:

• ⭐ Star it on GitHub
• 🐛 Report issues or suggest features
• 💡 Contribute to make schema conversions even better

Let’s make working with ER diagrams and database schemas simple, reliable, and open for everyone.


This is just the beginning — feedback, stars and contributions are more than welcome 🙌.




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