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. Optional Cloud Sync with PRO
RelateDB can export the canvas as PNG, JPG, or SVG images and generate read-only public share links (including snapshots), allowing designers or developers to share schema diagrams with non-technical stakeholders without granting edit access.
RelateDB Pro lets users invite teammates by email as editors or viewers per workspace, with cloud sync propagating changes automatically across all devices — enabling async team collaboration on shared schemas without additional setup.
RelateDB accepts SQL CREATE TABLE statements and DBML imports, renders them on the canvas for visual editing, and allows re-export to Postgres/MySQL SQL or DBML — making it easy to reverse-engineer and improve an existing schema.
RelateDB provides a visual ERD canvas where users can create tables, columns, and relationships as nodes and edges, all offline in the browser with no account required — letting developers draft and iterate on schema structure before touching a database.
RelateDB supports named snapshots, visual diffs between versions, and export of Postgres/MySQL migration SQL between any two snapshots or against the current schema — giving solo developers a lightweight version-control workflow for schema changes.