Mermaidviewer
Mermaid Viewer is a browser-based editor for creating, previewing, and exporting Mermaid diagrams with live preview, AI-assisted code generation, collaboration, and enterprise deployment options.
Mermaidviewer is developer tools software teams evaluate for creative & design. Use this page to review pricing, integration signals, and the best alternatives before you commit.
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Quick Overview
Best for: Creative & Design
What it does
Developer Tools software for decision-makers comparing workflow fit and alternatives.
Best fit
Creative & Design
Pricing snapshot
Freemium from $0
Next step
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Mermaidviewer
Mermaid Viewer is an online diagram editor that lets users write Mermaid syntax and see live previews instantly in the browser. It targets developers, architects, product designers, educators, and teams who need a fast, lightweight way to create flowcharts, timelines, wireframes, and other Mermaid-based diagrams without installing local tools.
The tool emphasizes speed and privacy: no signup is required to start, data stays in the browser by default, and users can export diagrams as SVG/PNG/PDF/Markdown. Mermaid Viewer also includes AI-assisted code generation (GPT‑4 powered), real-time collaboration links, template library, and enterprise options such as Docker private deployment and role-based access control.
Mermaid Viewer is a browser-based editor for creating, previewing, and exporting Mermaid diagrams with live preview, AI-assisted code generation, collaboration, and enterprise deployment options.
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Claim this listingKey Features
Live Preview
Instant rendering of Mermaid diagrams as you type—no separate 'Render' button required.
AI-Assisted Coding
A 'Generate with GPT-4' button converts text descriptions into Mermaid code to speed up diagram creation.
Smart Export
Export diagrams as SVG, PNG, JPG, PDF or Markdown with options for custom DPI and dark/light themes.
Enterprise Integration
Supports private deployment via Docker and role-based access control for team and enterprise use.
Smart Debugging
Syntax error highlighting with auto-correction suggestions to help fix broken diagrams quickly.
Real-time Collaboration
Share editor links for team members to co-edit diagrams in real time and collaborate on design.
Recommended Templates
Pre-built templates (flowcharts, timelines, wireframes, governance flows, course lifecycles) to accelerate diagram creation.
No Signup Required
Start creating diagrams immediately in the browser without registration; data stays local by default.
Pricing
Free plan with 3 diagrams, 5 AI conversations per day, low-res PNG export with watermark, basic sharing and no version history.
Free
$0- 3 diagrams
- 5 AI conversations per day
- Low-res PNG export (watermark)
- Basic sharing
Starter
$69.99/year- 30 diagrams
- 500 AI conversations per month
- High-res PNG export (no watermark)
- Unlimited sharing
Pro
$119.99/year- Unlimited diagrams
- Unlimited AI conversations
- All formats (PNG/JPG/PDF/SVG)
- Advanced sharing & statistics
Use Cases
Architecture & System Diagrams
Rapidly sketch system and architecture diagrams to share designs and decisions with engineering teams.
Project & Academic Timelines
Create timelines for project milestones, semester schedules, and other chronological visualizations.
Process & Governance Flows
Document decision processes, governance committee workflows, and agenda intake/voting flows.
Wireframe Collaboration
Outline UI/UX flows from design brief to engineering handoff using flowchart and wireframe templates.
Teaching & Documentation
Embed or export diagrams for tutorials, docs, and presentations with high-quality export formats.
Integrations
Docker (Private Deployment)
Enables self-hosted/private deployment for enterprise environments.
Role-Based Access Control (RBAC)
Enterprise-level access controls to manage team permissions and security.
VS Code Plugin
A plugin (referenced in user feedback) integrates Mermaid Viewer functionality into VS Code for faster in-editor workflows.
Benefits
Limitations
Frequently Asked Questions
How do I save my diagrams?
How do I share diagrams with my team?
What types of diagrams are supported?
Do I need to install anything?
How do I export high-quality diagrams?
Getting Started
- 1 Enter Mermaid code in the built-in editor (or use a template).
- 2 Watch the real-time preview update as you type to iterate quickly.
- 3 Export the diagram as SVG/PNG/PDF/Markdown or share an editor link for collaboration.
Support
Contact support via [email protected] for general questions and account issues.
docs
Documentation, tutorials and MermaidDocs are available on the site under 'Docs & Tutorials'.
priority support
Pro plan includes priority support for faster response times.
API
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