kitio.aiAdded Nov 5, 2026
Mermaid Viewer
FreemiumBrowser editor for Mermaid diagrams with AI code generation
What is Mermaid Viewer?
Mermaid Viewer is an online editor that renders Mermaid diagram code as you type and can turn a plain-language description into Mermaid syntax with AI. It suits developers and technical writers who document flows, timelines and systems as code.
You paste or write Mermaid code, or open .mmd and Markdown files, and the preview updates live without a render step. Syntax errors are highlighted with suggested fixes, and a library of templates covers flowcharts, timelines and other common chart types.
Diagrams export to SVG, PNG, PDF or Markdown with light and dark themes and adjustable resolution. Share links let teammates co-edit and comment, and companies can run a private Docker deployment with role-based access control.
Features
- Live Mermaid preview
- Text-to-diagram AI
- Syntax error fixes
- SVG, PNG and PDF export
- Shared editing links
- Docker self-hosting
Tags
Releases
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Organization
Mermaid Viewer
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
Mermaid Viewer plans
Free
Free
- 3 diagrams
- 5 AI conversations per day
- Watermarked low-res PNG
Starter
$69.99/yr billed yearly
- 30 diagrams
- 500 AI conversations per month
- High-res PNG without watermark
- 30 saved versions
Pro
$119.99/yr billed yearly
- Unlimited diagrams
- Unlimited AI conversations
- PNG, JPG, PDF and SVG export
- 100 saved versions
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Mermaid Viewer site.Official pricing
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Pros and cons
Pros
- No install, runs in the browser
- AI drafts diagram code from text
- Many export formats on paid plans
Cons
- Free plan allows only 3 diagrams
- Free exports are low-res and watermarked
- Monthly prices not shown, only yearly
Prompts & results
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Reviews
Q&A
What is Mermaid Viewer?
Mermaid Viewer is an online editor that renders Mermaid diagram code as you type and can turn a plain-language description into Mermaid syntax with AI. It suits developers and technical writers who document flows, timelines and systems as code.
Which file types can Mermaid Viewer open?
It reads Mermaid code directly as well as .mmd and Markdown files that contain Mermaid blocks.
Can Mermaid Viewer be hosted privately?
Yes. It offers a Docker deployment for private hosting with role-based access control for teams.
How much does Mermaid Viewer cost?
Mermaid Viewer is freemium.
Is there a free version of Mermaid Viewer?
Yes. Mermaid Viewer has a free plan, and paid plans add more usage and features.
What are the main features of Mermaid Viewer?
Live Mermaid preview, Text-to-diagram AI, Syntax error fixes, SVG, PNG and PDF export, Shared editing links, Docker self-hosting.
Who makes Mermaid Viewer?
Mermaid Viewer is made by Mermaid Viewer.
What are the best alternatives to Mermaid Viewer?
Popular alternatives include Diagramming AI, ChatFlowchart, Diagram Generator.