Offline-first database schema designer in your browser
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.
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