- Home
- AI Diagram Generators
- AI Diagram Maker
AI Diagram Maker
What it is
AI Diagram Maker creates software architecture and flow diagrams from conversational descriptions. It converts natural-language requests into D2 diagram code, which users can refine by chatting with the AI or editing the code directly. It can also build diagrams from images, documents, notes, GitHub repositories, code, JSON, YAML, ASCII diagrams, and Mermaid. Its MCP server supports flowcharts, sequence diagrams, ERDs, system architecture diagrams, and UML diagrams, and connects with Cursor, Claude Desktop, Claude Code, and other MCP-compatible clients. Users can export D2 code, SVG, or PNG. Public GitHub repositories do not require authentication; private repositories use GitHub authentication. The free Basic plan includes 50 AI credits per month and no diagram revision history. Plus costs $10 a month and includes 250 credits and 30-day revision history; Max costs $20 a month and includes 500 credits and 90-day revision history. Each credit represents 1,000 tokens, resets monthly on the billing-cycle date, and cannot currently be replenished before reset. The service is available on the web and through an API.
For and against
For
- Creates diagrams from varied document and code inputs
- Supports five diagram types through its MCP server
- Exports D2 code, SVG, and PNG
- Private GitHub repositories use GitHub authentication
Against
- Basic has no diagram revision history
- Credits cannot currently be replenished before monthly reset
- Privacy policy says absolute security cannot be guaranteed
The verdict
AI Diagram Maker combines conversational diagram creation with direct D2 editing and exports. Compare the monthly credit allowances and revision-history limits when choosing a plan.
Who it suits
It suits developers who want to turn software architecture or workflow inputs into diagrams within development workflows. Teams using MCP-compatible clients can connect through the server with an account API key.
Plans and prices
Basic
AI generation and editing · PNG/SVG/code export · document and GitHub code input · 50 AI credits/month
Read 15 Oct 2026 · aidiagrammaker.com
Plus
Basic features · 250 AI credits/month · 30-day revision history · priority support
Read 15 Oct 2026 · aidiagrammaker.com
Max
Basic features · 500 AI credits/month · 90-day revision history · priority support
Read 15 Oct 2026 · aidiagrammaker.com
On the record
- AI accuracy limitation
- The terms require users to review generated content and disclaim guarantees that AI output will be accurate or error-free.aidiagrammaker.com · read 15 Oct 2026
- AI generation
- The service generates diagrams from plain text and supports conversational refinement.aidiagrammaker.com · read 15 Oct 2026
- API keys
- Users can create, deactivate, reactivate, and delete API keys for MCP or CLI use; a newly created key is shown only once.aidiagrammaker.com · read 15 Oct 2026
- Attachment input
- Users can upload images, documents, or notes for conversion into structured diagrams.aidiagrammaker.com · read 15 Oct 2026
- Automatic layout
- AI Diagram Maker automatically positions, aligns, and styles diagram elements.aidiagrammaker.com · read 15 Oct 2026
- Chrome adoption
- The Chrome extension listing shows 5,000 users and version 1.6.chromewebstore.google.com · read 15 Oct 2026
- 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.chromewebstore.google.com · read 15 Oct 2026
- CLI package
- Claude Code setup uses the npm package ai-diagram-maker-mcp with an ADM_API_KEY environment variable.aidiagrammaker.com · read 15 Oct 2026
- Code editing
- A code view lets users directly edit the underlying D2 diagram code.aidiagrammaker.com · read 15 Oct 2026
- Code to diagram
- The product analyzes public or private GitHub repositories and creates architecture diagrams.aidiagrammaker.com · read 15 Oct 2026
- 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.aidiagrammaker.com · read 7 Oct 2026
- Customization
- Toolbar controls include color themes, light/dark mode, layout direction, containers, and icons.aidiagrammaker.com · read 15 Oct 2026
- 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.aidiagrammaker.com · read 7 Oct 2026
- Diagram inputs
- Users can create diagrams from images, documents, notes, GitHub repositories, code, JSON, YAML, ASCII diagrams, and Mermaid.aidiagrammaker.com · read 7 Oct 2026
- Diagram types
- Documented diagram choices include flowchart, system architecture, sequence, ERD, and UML class diagrams.aidiagrammaker.com · read 15 Oct 2026
- Documentation depth
- The user guide covers creation, repository analysis, editing, customization, exports, workspaces, versions, icons, API keys, and D2-to-Mermaid conversion.aidiagrammaker.com · read 15 Oct 2026
- Editing and exports
- Users can edit diagrams through conversation or direct D2 code editing and export diagram code, SVG, or PNG.aidiagrammaker.com · read 7 Oct 2026
- Export formats
- Exports include PNG, SVG, diagram code, and Draw.io XML through the user guide workflow.aidiagrammaker.com · read 15 Oct 2026
