Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
A fast and simple motion design tool on the web
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free: unlimited editor and preview, 3 saved diagrams, 5 AI uses total, PNG export 1× with watermark. Starter: $6.99/month or $69.90/year; 30 saved diagrams, 500 AI conversations per month, PNG export up to 4× without watermark. Pro: $11.99/month or $119.90/year; unlimited diagrams, unlimited AI, PNG
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Key features
Live preview of Mermaid code as you type
AI diagram generator, editor and syntax fixer
PNG export on every plan; JPG, SVG and PDF on Pro
All 22+ Mermaid diagram types supported
Share diagrams via public links and embeds
Save diagrams to cloud with folders and version history
Keyboard shortcuts and autocomplete
Mobile-responsive editor with pan and pinch-zoom
AI-powered animation generation with natural language prompts
Figma integration with pixel-perfect import and synced changes
Export to 4K, 120fps video, GIF, Lottie, ProRes, WebM, and transparent formats
Real-time team collaboration with shared workspaces and comments
400+ free animation templates to remix and customize
Text animation by line, word, or letter with custom presets
1,500+ free fonts and custom font support
Batch import and export for creating hundreds of variations
What makes it different
No account or sign-up required to start editing diagrams
Affordable pricing: Starter at $6.99/month, Pro at $11.99/month
Diagrams render in your browser; nothing stored unless you choose to save
Fast editor with instant rendering and clear error messages
AI agents automate repetitive animation tasks while maintaining full creative control
Seamless Figma integration with 300,000+ designer plugin users
Scale production to hundreds of variations with AI workflows and batch operations
Intuitive timeline and animation model requiring no complex keyframe knowledge
Affordable starting at free plan with professional-grade export quality up to 4K
Mermaid Viewer
Jitter