Create beautiful customized app screenshots for your App Store & Google Play page
Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Stage
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
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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
Key features
1000+ pre-built templates
Latest iOS and Android device frames
Device mockups and frames
Background customization with colors, gradients, patterns or images
2K+ icons and SVGs
Rich library of images and illustrations
Localization support for multiple languages and regions
Font styling customization
Automatic screenshot scaling for all required sizes
A/B testing with multiple screenshot styles
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
What makes it different
No design experience required - works without Photoshop or Figma
Saves 10+ hours through automatic scaling and formatting
Trusted by 1 million apps worldwide
Create screenshots 10x faster with ready-made templates
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
AppLaunchpad
Mermaid Viewer