Design one screenshot set and export it at every App Store and Google Play size, in every language you ship
Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Stage
Not given
Not given
Founded
Not given
Not given
Based in
AR
Not given
Pricing model
Paid
Freemium
Pricing
Free plan with limited exports; Monthly $7/month (billed $84/year); Yearly $84/year; Lifetime $149 once (founding price, capped at 200 accounts, then $199)
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
Exports every App Store and Google Play size verified 2026-09-12
Support for 49 languages with bundled fonts
Drag-and-drop capture upload with zoom and pan inside frames
Pre-flight compliance checking on every file before download
A/B variant creation with automatic foldering
CSV or XLIFF export/import for translations
Automatic text fitting across languages
Custom font upload support for brand typefaces
Reusable design looks across projects
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
One design automatically resolves into every size both stores require, eliminating manual artboard duplication
Pre-flight checks all store rules instantly before export, catching issues before submission
Localization handled in one grid with automatic text shrinking, not manual duplication per language
One license covers unlimited apps and exports with no per-app or per-seat charges
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
Easy App Screens
Mermaid Viewer