
AI Diagram Maker
AI Diagram Maker creates software architecture and workflow diagrams through a conversational interface.
What AI Diagram Maker is
AI Diagram Maker creates software architecture and workflow diagrams through a conversational interface. Describe a diagram in natural language to generate D2 code, then refine it by chatting with the AI or editing the code directly. It can also create diagrams from images, documents, notes, GitHub repositories, code, JSON, YAML, ASCII diagrams, and Mermaid. Public GitHub repositories can be used without authentication; private repositories require GitHub authentication. Its MCP server supports flowcharts, sequence diagrams, ERDs, system architecture diagrams, and UML diagrams, and works with Cursor, Claude Desktop, Claude Code, and other compatible clients. Diagrams can be exported as D2 code, SVG, or PNG. The Basic plan includes 50 AI credits per month, with no revision history. Plus costs $10/mo and includes 250 credits; Max costs $20/mo and includes 500 credits. Each credit represents 1,000 tokens, and credits reset on the billing-cycle date. The privacy policy says account details, diagrams, revisions, conversations, and credit history are stored, and data may be used to process requests and improve AI models.
Good
- Generates D2 diagrams from natural-language descriptions
- Accepts Mermaid, GitHub, code, and document inputs
- Exports D2 code, SVG, and PNG
- MCP server supports several diagram types
Watch out
- Basic plan has no diagram revision history
- Credits reset monthly, and exhausted users must wait
- Service stores diagrams and conversation data
Who it suits
It is aimed at developers who want to visualize software architecture and workflows within development workflows. The range of import sources and MCP integrations may suit users who work with those inputs or clients.
Verdict
AI Diagram Maker brings conversational diagram creation together with direct D2 editing and several input sources. Review the credit allowance and data handling details before using it for ongoing or sensitive work.
Plans and prices
From AI Diagram Maker's own pricing page, checked 15 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Basic | Free | AI generation and editing · PNG/SVG/code export · document and GitHub code input · 50 AI credits/month · no revision history · $0 forever |
| Plus | $10 a month | Basic features · 250 AI credits/month · 30-day revision history · priority support · $10 /month |
| Max | $20 a month | Basic features · 500 AI credits/month · 90-day revision history · priority support · $20 /month |
The facts
Each one read from AI Diagram Maker's own pages, with the date it was checked.
What it does
- AI accuracy limitation
- The terms require users to review generated content and disclaim guarantees that AI output will be accurate or error-free.checked 15 Oct 2001
- AI generation
- The service generates diagrams from plain text and supports conversational refinement.checked 15 Oct 2001
- API keys
- Users can create, deactivate, reactivate, and delete API keys for MCP or CLI use; a newly created key is shown only once.checked 15 Oct 2001
- Attachment input
- Users can upload images, documents, or notes for conversion into structured diagrams.checked 15 Oct 2001
- Automatic layout
- AI Diagram Maker automatically positions, aligns, and styles diagram elements.checked 15 Oct 2001
- Chrome adoption
- The Chrome extension listing shows 5,000 users and version 1.6.checked 15 Oct 2001
- Chrome privacy claim
- The extension listing says the developer does not collect or use user data and claims data stays in the user's Google account.checked 15 Oct 2001
- CLI package
- Claude Code setup uses the npm package ai-diagram-maker-mcp with an ADM_API_KEY environment variable.checked 15 Oct 2001
- Code editing
- A code view lets users directly edit the underlying D2 diagram code.checked 15 Oct 2001
- Code to diagram
- The product analyzes public or private GitHub repositories and creates architecture diagrams.checked 15 Oct 2001
- Credit limits
- Each credit represents 1,000 tokens, credits reset monthly on the billing-cycle date, and users who run out currently must wait for the reset.checked 7 Oct 2001
- Customization
- Toolbar controls include color themes, light/dark mode, layout direction, containers, and icons.checked 15 Oct 2001
- Data handling
- The privacy policy says it stores account details, diagrams, revisions, conversation data, and credit history, and may use data to process requests and improve AI models.checked 7 Oct 2001
- Diagram inputs
- Users can create diagrams from images, documents, notes, GitHub repositories, code, JSON, YAML, ASCII diagrams, and Mermaid.checked 7 Oct 2001
- Diagram types
- Documented diagram choices include flowchart, system architecture, sequence, ERD, and UML class diagrams.checked 15 Oct 2001
- Documentation depth
- The user guide covers creation, repository analysis, editing, customization, exports, workspaces, versions, icons, API keys, and D2-to-Mermaid conversion.checked 15 Oct 2001
- Editing and exports
- Users can edit diagrams through conversation or direct D2 code editing and export diagram code, SVG, or PNG.checked 7 Oct 2001
- Export formats
- Exports include PNG, SVG, diagram code, and Draw.io XML through the user guide workflow.checked 15 Oct 2001
- GitHub
- Code to Diagram supports public GitHub repositories without authentication and private repositories through GitHub authentication.checked 7 Oct 2001
- GitHub permissions
- For private repositories, the guide says users can limit access to selected repositories and that access tokens are not stored.checked 15 Oct 2001
- Google Workspace integration
- The Google Workspace Marketplace listing works with Google Docs and Google Slides and is free of charge.checked 15 Oct 2001
- Icon library
- The icon picker includes categories such as Essentials, AWS, Azure, and GCP.checked 15 Oct 2001
- Integrations
- The MCP server works with Cursor, Claude Desktop, Claude Code, and other MCP-compatible clients.checked 7 Oct 2001
- Intellectual property
- The terms state that the service and its original features are protected by copyright, trademark, patent, trade-secret, and related laws.checked 15 Oct 2001
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