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MermaidViewer
Online editor for Mermaid diagrams with live previews, AI-assisted code generation, and export to SVG, PNG, or Markdown.
FreeStarting price
115KMonthly visits
34Popularity
About MermaidViewer
MermaidViewer is an online platform for creating, editing, and sharing Mermaid diagrams with real-time previews and AI-assisted code generation. Users can collaborate in real time or work independently without installing any software. The tool supports exporting diagrams in SVG, PNG, or Markdown formats, making it easy to integrate into documentation, presentations, or code repositories. MermaidViewer is designed for developers, product managers, and technical teams who need to produce professional-quality diagrams quickly and accurately. It simplifies the process of visualizing system architectures, workflows, and technical concepts, reducing the time spent on manual diagramming. The platform is accessible via a web browser, ensuring compatibility across devices and operating systems.
Key features
- Live preview of Mermaid diagrams as you type
- AI-assisted code generation to speed up diagram creation
- Export options for SVG, PNG, and Markdown formats
- Real-time collaboration for team-based diagramming
- No installation required; browser-based access
- Support for flowcharts, sequence diagrams, Gantt charts, and more
- Intuitive interface for quick and accurate diagram editing
- Seamless sharing and embedding of diagrams
Use cases
- Create and maintain technical documentation with visual system architectures and API flows
- Map out developer workflows such as CI/CD pipelines, commit flows, and microservices
- Facilitate team collaboration for planning, retrospectives, and onboarding with shared diagrams
Pros
- Real-time preview of Mermaid diagrams as you type, eliminating the need for manual rendering
- AI-assisted code generation via GPT-4 to convert text descriptions into Mermaid code
- No software installation required; accessible entirely through a web browser
- Supports exporting diagrams in multiple formats including SVG, PNG, PDF, and Markdown
- Privacy-focused with data staying in the browser and no storage of user content
Cons
- Free plan includes watermarked exports and limited AI conversations per day
- Advanced features such as high-resolution exports and version history require a paid subscription
Frequently asked questions about MermaidViewer
How do I save my diagrams?
Diagrams can be saved by exporting them in your preferred format (SVG, PNG, PDF, or Markdown) directly from the editor interface.
How do I share diagrams with my team?
You can share diagrams by generating editor links that allow real-time collaboration, enabling team members to co-edit the diagrams.
What types of diagrams are supported?
The tool supports all Mermaid diagram types, including flowcharts, sequence diagrams, Gantt charts, class diagrams, state diagrams, and more.
Do I need to install anything?
No installation is required; MermaidViewer operates entirely in your web browser, making it compatible across devices and operating systems.
How do I export high-quality diagrams?
High-resolution exports are available in the paid plans, allowing you to download diagrams in PNG, JPG, PDF, or SVG formats without watermarks.
Is there a free plan available?
Yes, MermaidViewer offers a free plan that allows users to create diagrams and perform a limited number of AI-assisted conversions per day.
MermaidViewer traffic & engagement
mermaidviewer.com · third-party estimates from Similarweb
Data as of Sep 2026Full AI website ranking →
Monthly visits · Sep 2026115K-10.5% MoM12-month high 161K (Jun 2026)
Rank among AI websites#1,846▼ 109 vs last monthof 8,652 tools on aitoolnavio™
Top marketIndia11.6%Top 5 countries bring 34% of visits
Average visit47sLonger than 54% of AI sites
Pages per visit1.83Average pages viewed
Bounce rate44%Leave after one page · lower is better
Similarweb global rank#362,587#157,397 in India
Traffic trend
Last 4 months · grows by one month every month
- Jun 2026161K
- Jul 2026143K−10.9%
- Aug 2026128K−10.5%
- Sep 2026115K−10.5%
Top countries
Share of visits · estimated visits
Other countries: 65.6%
Visits sent by AI assistants
How people reach this site from other AI tools
40 a month
Compared with similar tools
Image & Design · Sep 2026
Traffic figures are third-party estimates, good for scale and trends; they can differ from a company's own numbers. Updated monthly.
