Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Professional Color Picker for macOS
Stage
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Founded
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Based in
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Pricing model
Freemium
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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
Eyedropper tool for picking colors from anywhere on screen
Support for multiple color modes including RGB, HSB, and HSL
Color library with save and organization functionality
Powerful search functionality to find colors by name or value
Menu bar quick access with one-click copy
Multiple export formats for color values
Global hotkey for instant color picking
Color history tracking and management
Customizable global hotkeys and color format preferences
Automatic dark mode adaptation
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
Secure local data storage with no privacy concerns
Mermaid Viewer
PixelColor