OpenDBD
OpenDBD: OpenDBD combines free ER modeling, exports, migrations, and optional BYOK AI in a browser. Ranked #27 of 34 in Database Design Tools by our editors (6.7/10); pricing: Free plan; best for free AI-assisted schema sketching.
At a glance
- Editor score6.7 / 10
- PricingFree plan
- Best forFree AI-assisted schema sketching
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Free visual ER canvas with templates and relationship modeling
- Exports to JSON, SQL DDL, Markdown, Mermaid, and PNG
- Local projects with migrations, seed SQL, notes, and undo/redo
Where it doesn't
- AI features require user-configured provider keys
- Web-only access may not suit offline desktop workflows
- Local browser storage is less suited to shared team workflows
Our verdict on OpenDBD
OpenDBD is a browser-based database schema design tool for developers, architects, and teams sketching relational structures before implementation. Its visual ER canvas covers tables, columns, types, and relationships, while templates provide starting points for common schemas. The product is free, requires no account, and stores projects, schemas, chat, and notes locally in the browser. That makes it a practical choice for lightweight design work where keeping the workspace in local browser storage is appropriate.
The strongest feature set is the combination of modeling and delivery-oriented schema management. OpenDBD supports migration script versioning and seed SQL management, then exports designs as JSON, SQL DDL, Markdown, Mermaid diagrams, or PNG images. Multi-project workspaces, notes, chat, and undo/redo give the canvas more structure than a simple diagramming tool. Users who need a free place to shape schemas and produce several handoff formats should find this breadth useful.
Its optional schema-aware AI assistant supports OpenAI, Anthropic, Gemini, OpenRouter, Ollama, and WebLLM through user-configured providers and keys. That flexibility suits users who already have an AI provider preference, while adding setup work compared with a built-in assistant. OpenDBD remains focused on browser-based schema design, versioned migrations, seed data, and exports rather than a broader shared database operations environment. Choose it for local-first design and AI-assisted sketching; choose another tool when shared team workflows or a different deployment model are central requirements.
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OpenDBD pricing
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OpenDBD fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Reverse engineering | Not verified |
| Forward engineering | Not verified |
| SQL export | Yes |
| Supported databases | Not verified |
| Team collaboration | Not verified |
| Version history | Yes |
| Deployment | Web |
| Deployment | Cloud |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 6 integrations: OpenAI, Anthropic, Gemini, OpenRouter, Ollama, WebLLM |
| Pricing | Free plan (source) |
| Website | opendb.design |
| Facts checked | 20 Sep 2026 |
OpenDBD integrations
OpenDBD lists 6 integrations on its own site.
- OpenAI
- Anthropic
- Gemini
- OpenRouter
- Ollama
- WebLLM
Alternatives to OpenDBD
- DbSchemaA broad cross-platform modeler for database design, migration, documentation, and review.9.4
- SqlDBMA broad modeling workspace for teams aligning schemas, warehouses, lineage, and documentation.9.2
- Hackolade StudioA broad modeling workspace for teams managing complex, multi-model data architecture.9.1
See all OpenDBD alternatives →
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Featured on iTechGuides
OpenDBD is listed in our Database Design Tools directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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