RelateDB

What it does

RelateDB is an offline-first, browser-based database schema designer. Model tables and relationships visually, import SQL or DBML, auto-arrange diagrams, and export SQL/DBML or images. No accounts, no cloud, no limits—everything runs locally in your browser for fast, frictionless schema design.

Free offline-first ERD & schema designer. Connect to live PostgreSQL/MySQL, export SQL/DBML, sync across devices. A great ChartDB alternative.

RelateDB is a browser-based ERD studio for modeling tables, columns, and relationships. Everything is free and unlimited locally. Upgrade to Pro to sync across devices, collaborate with your team, and connect directly to live PostgreSQL & MySQL databases to pull schemas instantly. A fast canvas for modeling + thoughtful productivity features for real projects. Tables as nodes, relations as edges. Drag, select, edit, and keep the big picture visible across schemas. Work persists locally via IndexedDB-backed storage. Refresh, reopen, and continue without servers. Bring in DBML or SQL CREATE TABLE, then refine visually and keep schemas organized in workspaces. Export SQL for Postgres/MySQL,…from relatedb.com

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  Hey HN! We are Jonathan & Guy, and we are happy to share a project we’ve been working on. ChartDB is a tool to help developers and data analysts quickly visualize database schemas by generating ER diagrams with just one query. A unique feature of our product is AI-Powered export for easy migration. You can give it a try at https://chartdb.io and find the source code on GitHub. Next steps ---> More AI. We’d love feedback :)

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