
Mermaid ViewerBrowser-based Mermaid diagram editor with live preview, AI generation, and multi-format export.
Overview
Key features
- Live Mermaid code preview
- AI-assisted diagram code generation
- Support for multiple Mermaid diagram types
- Export to image and vector formats
- Browser-based editor with no installation
- Shareable diagram output
Pricing
- Model
- Freemium
- Category
- Code Assistants
- Rating
- 4.5 / 5 (4)
Use cases
Generate flowcharts from plain English
Describe a process in natural language and let the AI generator produce Mermaid code, then refine it in the live editor to get a working flowchart quickly.
Create diagrams for technical documentation
Build sequence diagrams, class diagrams, or Gantt charts in the browser and export them as images or vector files to embed in docs and specs.
Iterate on diagrams with live preview
Paste or edit Mermaid code and see the rendered output update instantly, making it easy to tweak structure and layout before sharing.
Share diagrams without local tooling
Produce shareable diagram output directly from the browser, useful for teams that want to collaborate on diagrams without installing Mermaid CLI or design software.
Pros & Cons
Pros
- Runs entirely in the browser with no setup
- Live preview speeds up diagram iteration
- AI generation lowers the Mermaid learning curve
- Supports multiple export formats
Cons
- Requires familiarity with Mermaid syntax for advanced edits
- AI output may need manual cleanup
- Limited offline functionality
- Fewer styling controls than dedicated design tools
Reviews
Average from 4 ratings.
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Does the job
Pretty happy overall. Shareable diagram output just works and aI generation lowers the Mermaid learning curve. but no dealbreakers — I'd recommend it to a friend without hesitating.
Use it every day
Honestly didn't expect to like it this much. Live Mermaid code preview is exactly what I needed, and live preview speeds up diagram iteration. I do wish fewer styling controls than dedicated design tools, but I reach for it almost every day now and it just clicks.
Use it every day
Honestly didn't expect to like it this much. Support for multiple Mermaid diagram types is exactly what I needed, and supports multiple export formats. but I reach for it almost every day now and it just clicks.
Solid for our team
We rolled this out across the team last quarter and live preview speeds up diagram iteration. Export to image and vector formats fits neatly into how we already work, and browser-based editor with no installation removed a step we used to do by hand. Limited offline functionality, which is the main caveat, but it has held up under daily use.
Q&A
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