WHAT IS IT?
Thoth Blueprint is a free, browser-based tool for designing database schemas. You build your model with drag-and-drop, connect your tables, then export to SQL, DBML, JSON or SVG. It runs offline-first: everything is stored locally, installable as a PWA, with no account and no usage limits.
WHY IS IT INTERESTING?
- Offline-first visual editor: drag-and-drop design in the browser, data stored locally, installable as a PWA.
- Multi-format export: SQL, DBML, JSON and SVG, with a full DBML workflow (import, export and a dedicated editor).
- Migration generation: produces migration files for Laravel, TypeORM and Django straight from the schema.
- Zone organization: group tables into lockable zones, copy/paste elements, keyboard shortcuts.
- Checkpoints: snapshots of the model to experiment without breaking anything.
USE CASES
- Prototype a database schema before implementing it.
- Generate migrations for a Laravel, Django or TypeORM project from the visual model.
- Document an existing database by importing it via DBML.
- Share a database design by exporting it to SVG without relying on an online service.