OpenDBD
OpenDBD is a free web application for designing database schemas on a visual canvas with schema-aware AI assistance.
What OpenDBD is
OpenDBD is a free web application for designing database schemas on a visual canvas with schema-aware AI assistance. Users drag, drop, and connect tables on a React Flow canvas while keeping columns, types, and relationships structured. Projects can start from a blank canvas, a template, or an AI-generated starter schema. The assistant can propose tables, columns, relationships, and indexes, draft migrations and seed data, and suggest fixes when SQL fails. It supports OpenAI, Anthropic, Gemini, OpenRouter, local Ollama, and in-browser WebLLM. Exports include JSON, SQL DDL, Markdown, Mermaid ER diagrams, PNG canvas images, migration scripts, and seed scripts. Projects, schemas, chat, and notes stay in browser IndexedDB; the maker says no account is required and workspaces are not synced to its servers. Requests go directly to the selected provider, and API keys remain in the browser. The Free plan is free, with no seats or credit card; provider charges may apply.
Good
- Visual React Flow schema canvas
- AI suggestions for schema and SQL work
- Multiple export formats, including SQL and Mermaid
- No account required
- Workspace stored in browser IndexedDB
Watch out
- Provider charges may apply
- Requires bringing your own LLM key
- Web-only deployment
- Workspace is not synced remotely
Who it suits
It suits developers and designers who want visual schema modeling with optional AI assistance. It also fits users who prefer local browser storage and direct connections to their chosen model provider.
Verdict
OpenDBD combines structured visual schema design with provider-flexible AI assistance and broad export options. Its browser-local approach suits privacy-conscious users, while model access costs remain their responsibility.
Plans and prices
From OpenDBD's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | No account · No seats · No credit card · Bring your own LLM key; provider charges may apply |
The facts
Each one read from OpenDBD's own pages, with the date it was checked.
Money
- AI billing
- The app does not resell or mark up API access; any LLM cost is charged by enabled providers.checked 11 Oct 2026
What it does
- AI capabilities
- The assistant can propose tables, columns, relationships, and indexes, draft migrations and seed data, and suggest fixes when SQL fails.checked 11 Oct 2026
- AI providers
- The agent supports OpenAI, Anthropic, Gemini, OpenRouter, local Ollama, and in-browser WebLLM.checked 11 Oct 2026
- ER canvas
- Users can drag, drop, and connect tables on a React Flow canvas, with columns, types, and relationships kept in a structured model.checked 11 Oct 2026
- Exports
- Users can export JSON, SQL DDL, Markdown, Mermaid ER diagrams, PNG canvas images, migration scripts, and seed scripts.checked 11 Oct 2026
- Local storage
- Projects, schemas, chat, and notes are stored in IndexedDB in the user's browser, and the app says it does not sync the workspace to remote servers.checked 11 Oct 2026
- Privacy
- The maker says no account is required and schemas and API keys stay in the browser.checked 11 Oct 2026
- Provider traffic
- LLM requests go from the browser to the provider the user chooses, rather than through servers the maker operates.checked 11 Oct 2026
- Purpose
- OpenDBD is a visual database schema design canvas with schema-aware AI assistance.checked 11 Oct 2026
- Starting points
- Users can start from a blank canvas, a template, or an AI-generated starter schema.checked 11 Oct 2026
- Support
- The maker page provides common questions and instructions for configuring AI providers in Agent settings.checked 11 Oct 2026
- Workspace features
- The local-first workspace includes multiple projects, per-project chat and notes, and undo/redo.checked 11 Oct 2026
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