RelateDB

RelateDB is a free, offline-first database schema designer that allows users to visually model tables and relationships. It supports importing SQL/DBML and exporting to various formats, operating locally in the browser.

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At a glance

Pricing

Free · Freemium

Free tier

Yes

API

Skill level

Technical

About

What is RelateDB?

RelateDB is a free, offline-first, browser-based database schema design tool that enables users to visually model tables, columns, and relationships. It offers unlimited local projects, schemas, and tables, with all work persisting locally via IndexedDB. Users can import existing schemas from DBML or SQL CREATE TABLE statements and export SQL for Postgres/MySQL, DBML, or diagram images. Key features include an intuitive ERD canvas, auto-layout capabilities, version history with schema snapshots and visual diffs, and the ability to generate migration SQL. The tool is designed for a fast and frictionless experience, requiring no accounts or cloud dependencies for its core functionality.

Best used for

Ideal for developers and data scientists who need to quickly draft new database designs, organize complex schemas, and generate migration scripts. Especially valuable for those who prefer an offline-first workflow and require unlimited local projects without account requirements.

Common actions

design database schemas

model data relationships

generate SQL migrations

visualize database structures

import existing schemas

productivityDeveloper Toolsdesign tools

Capabilities

Key features

Visual ERD canvas
Offline-first persistence
Import SQL/DBML
Export SQL/DBML
Schema snapshots
Generate migration SQL
Auto-layout

Target Audience

developerdata scientist

Integrations

Not yet documented

Pricing & Plans

Free · Freemium

Not publicly disclosed. Check relatedb.com for current pricing.

FAQs

Is RelateDB truly offline-first?

Yes, RelateDB is designed to be offline-first. All your work persists locally in your browser via IndexedDB-backed storage, allowing you to refresh, reopen, and continue working without needing an internet connection or server.

Do I need an account to use RelateDB?

No, you do not need an account for the core functionality of RelateDB. Everything runs locally in your browser, providing a frictionless experience for designing database schemas without any sign-up requirements.

Can I import an existing database schema into RelateDB?

Yes, RelateDB supports importing existing schemas. You can import DBML (Database Markup Language) or SQL CREATE TABLE statements, allowing you to visualize and refine your current database structures visually.

What export options are available in RelateDB?

RelateDB offers several export options. You can export SQL for Postgres/MySQL, DBML, render the canvas to image formats like PNG/JPG/SVG, or create read-only public share links, including snapshots of your schema.

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