Free
Free
Free tier listed on homepage pricing grid
- Projects
- 2 projects with 3 diagrams each
- Editors
- All diagram editors included
Diagramming
● Identity checkedAssistant · Vendor site 2026-10-04
Diagramming AI generates and edits Mermaid, PlantUML, Graphviz, D2, and Excalidraw diagrams from plain English with AI chat refinements, quick fixes, and project storage. It adds forty-eight Excalidraw color themes, read-only sharing links, infographics mode, and multi-model credit tiers for heavier GPT or Claude requests.
- Category
- Assistant
- Free access
- Free plan is 0 USD per month with all editors, two projects, and three diagrams per project
- API access
- Not confirmed
Is Diagramming right for you?
A good fit for
Engineers and technical writers maintaining diagram-as-code repos who want AI drafting, theme controls, and shareable previews.
Before you choose
Higher-tier models consume more credits per request, and Remote MCP or WebMCP features depend on plan and browser support.
AI diagram generator and smart edits
Diagramming AI invites users to start free, create diagrams from prompts or notes, refine them through AI chat, and share read-only links after saving versions.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Multi-engine support | Homepage highlights Mermaid, PlantUML, Graphviz, D2, and Excalidraw generation with AI quick edits. | Facts sourced | 2026-10-04 |
| Excalidraw themes | Marketing promotes forty-eight Excalidraw color themes applied without regenerating diagrams via AI. | Facts sourced | 2026-10-04 |
Understand the total cost
Diagramming pricing & plans
Starter
$6.00 /mo
Billed monthly per homepage pricing grid
- Upgrade focus
- More credits, projects, and URL or image input
Pro
$14.00 /mo
Billed monthly per homepage pricing grid
- Upgrade focus
- Higher credit allowance for advanced models
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Explore toolThe practical questions
Frequently asked questions
What is the key benefit of using Diagramming AI?
Diagramming AI uses LLM-based automation to generate diagrams from text across formats like flowcharts, sequence diagrams, and Gantt charts while keeping editing dynamic.
Which version of LLMs is being used?
All plans can use listed models when credits remain, with default GPT-6 Luna at one credit and higher-end models consuming three credits per request.
What is Diagramming used for?
Diagramming AI generates and edits Mermaid, PlantUML, Graphviz, D2, and Excalidraw diagrams from plain English with AI chat refinements, quick fixes, and project storage. It adds forty-eight Excalidraw color themes, read-only sharing links, infographics mode, and multi-model credit tiers for heavier GPT or Claude requests.
Does Diagramming have a free plan?
Free plan is 0 USD per month with all editors, two projects, and three diagrams per project. This record lists ongoing free access; check the plan limits before starting.
How much does Diagramming cost?
The listed monthly price is $6.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Diagramming through an API?
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Higher-tier models consume more credits per request, and Remote MCP or WebMCP features depend on plan and browser support.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.