drawDB is a free, open-source (AGPL-3.0) database schema designer that runs in the browser, needs no account, and generates SQL DDL for seven dialects. These pages compare it honestly against the other tools people evaluate, including where those tools are the better choice. Figures come from each vendor's public pricing page and were last checked 2026-09-09.
Two open-source ERD tools, compared on limits, SQL support and price.
Drag-and-drop and open source, versus a code-first DSL.
An open-source alternative with a genuinely usable free tier.
A database-specific tool versus a general diagramming suite.
Typing-first diagrams versus a full visual canvas.
A schema tool that outputs SQL, versus a general drawing tool.
No install and seven dialects, versus a desktop app for MySQL.
Designing a new schema, versus exploring an existing one.
Free and in the browser, versus a paid desktop modeller.
| License | AGPL-3.0 (open source) |
| Free tier | Unlimited diagrams, no account required |
| Account required to start | No |
| SQL (DDL) export | 7 dialects |
| SQL import | Yes (paste DDL, get a diagram) |
| DBML | Import and export |
| Self-hosting | Yes |
| MCP server for AI agents | Yes, official MCP server |
| Paid plans from | $14 / month |