Diagramming AI
AI diagram generator and smart edits — create and edit Mermaid, PlantUML and more from plain English.
- Pricing:
- Free
Overview
Diagramming AI is an AI diagram generator that creates and edits Mermaid, PlantUML, GraphViz, D2 and Excalidraw diagrams from plain English. Build sequence diagrams, workflows, system maps and visual explainers with templates, quick edits and AI-assisted refinement.
Describe your diagram with a prompt or paste notes, chat with AI for suggestions and instant edits, then save versions and share a read-only public link for review. Features include a built-in template library, multi-engine diagram support, live preview, AI chat with discussion and update modes, and AI-powered error resolution that automatically analyzes and fixes diagram errors.
Project storage and retrieval keep everything organized and accessible, making diagramming dynamic and collaborative.
Core capabilities
- AI diagram creation
- Generate diagrams from plain English
- Multi-engine support
- Mermaid, PlantUML, GraphViz, D2, Excalidraw
- AI chat
- Discussion mode and update mode
- Template library
- Built-in templates
- Smart edits
- Instant fixes and clean layout output
- AI error resolution
- Automatically analyze and fix errors
- Live preview
- See your diagram in real time
- Sharing
- Read-only public links
- Project storage
- Keep diagrams organized
Use cases
- Flowchart creation
- Sequence diagrams
- System architecture
- Workflow mapping
- Technical documentation
Who it's for
Developers, Product managers, Architects, Technical writers, Students
Traffic analytics
diagrammingai.comPricing
Free
$0Admin.Tools.form.period_options.one-time
- All Editors, 2 projects, 3 diagrams/project, 10 credits, 3000 input characters, GPT-4.1-mini, Gemini-2.0-Flash, Claude-3.5-Haiku access
Lite
$3 /monthMonthly
- All Editors, Unlimited projects, Unlimited diagrams/project, 250 credits, 3000 input characters, URL to Diagram, Image to Diagram, GPT-4.1-mini, Gemini-2.0-Flash, Claude-3.5-Haiku access
Starter
$6 /monthMonthly
- All Editors, Unlimited projects, Unlimited diagrams/project, 800 credits, 12000 input characters, URL to Diagram, Image to Diagram, GPT-4.1-mini, Gemini-2.0-Flash, Claude-3.5-Haiku access, GPT-4.1, Gemini-2.5-Pro, Claude-3.7-Sonnet access
Pro
$14 /monthMonthly
- All Editors, Unlimited projects, Unlimited diagrams/project, 2,500 credits, 20000 input characters, URL to Diagram, Image to Diagram, GPT-4.1-mini, Gemini-2.0-Flash, Claude-3.5-Haiku access, GPT-4.1, Gemini-2.5-Pro, Claude-3.7-Sonnet access
Related tools
XunFeiXingChenMaaSFreeAn enterprise-grade Model-as-a-Service platform that streamlines the deployment, management, and integration of large language models into business applications.
ZhiPuQingLiuFreeZhipu Qingliu is Zhipu AI's open, enterprise-grade AI platform that unifies flagship GLM foundation models, agent development tools, MCP services, fine-tuning pipelines, and knowledge bases for building production-ready intelligent applications.
