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.
I built RelateDB because most free database diagram tools I tried had friction — either the UI felt limiting, key features were locked behind paywalls, or simple workflows took too many clicks.
I wanted something fast, offline-first, and frictionless: open the browser, design schemas visually, import/export SQL or DBML, and move on — no accounts, no uploads, no artificial limits.
Everything runs locally in your browser, and your data never leaves your machine.
This looks like a great tool for frictionless design! I’ve seen similar tools like ChartDB and DrawDB that also offer browser-based, account-free schema modeling.
Could you highlight what sets RelateDB apart from those?
It looks like you've converted indexedDB to use easily in browser.
Great idea!
Congrats on the launch! I like the idea a lot, just out of curiosity how do you generate revenue off of something like this?
Offline-first + no-account + SQL/DBML import/export is the exact “just let me sketch a schema” experience devs want. The scale pain is keeping diagrams stable as schemas grow (auto-layout + diffing) and best practice is a deterministic layout engine + schema version snapshots so changes are reviewable/undoable 🔥 Are you storing state in IndexedDB (with shareable file export), and will you add migration diffs (v1→v2 SQL) + collaborative “share a read-only link” as next steps?
Congrats on the launch — love how fast, offline-first, and no-account this is, perfect for devs who just want to sketch schemas and export SQL/DBML without any SaaS friction.
Karthik Ponnam
I built RelateDB because most free database diagram tools I tried had friction — either the UI felt limiting, key features were locked behind paywalls, or simple workflows took too many clicks.
I wanted something fast, offline-first, and frictionless: open the browser, design schemas visually, import/export SQL or DBML, and move on — no accounts, no uploads, no artificial limits.
Everything runs locally in your browser, and your data never leaves your machine.
I’d love feedback on usability, missing features