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Mermaid Viewer vs Shotomatic

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mermaid Viewer compared with Shotomatic
DetailMermaid Viewer logo Mermaid ViewerShotomatic logo Shotomatic
What it doesFree online Mermaid diagram viewer and editor with live preview, AI generation, and exports Turn clicks into step-by-step guides
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: 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 Free: up to 5 captured steps per session, unlimited saved guides and documents, basic editing and export tools. Pro Lifetime (1 Mac): $39 one-time. Pro Lifetime (3 Macs): $109 one-time. Pro Subscription (3 Macs): $12/month or $72/year.
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
  • Action Capture: save target state before each accepted click and create editable step-by-step guides
  • Timed screenshot capture with configurable intervals
  • Keypress automation to simulate keystrokes between shots
  • Website batch capture for multiple URLs at once
  • Export formats: PDF, PNG, JPG, WebP, ZIP, and MP4
  • Editing tools: text, shapes, lines, arrows, framing, and Action Focus
  • Multi-page document capture for books, comics, and webcomics
  • Capture entire screen, specific window, or custom area
  • Timelapse video creation from screenshot sessions
  • Offline operation: all captures stay on Mac unless shared
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
  • Click-driven guide creation: Action Capture turns completed tasks into ordered, editable step-by-step guides automatically
  • Hands-free automation: timed capture workflows let users complete tasks without manual screenshot intervention
  • Local privacy: all captures remain on the user's Mac and work entirely offline
  • One-pass workflow: capture, review, and export in one unified application
  • Flexible export: multiple formats including PDF, PNG, JPG, WebP, ZIP, and MP4 video
Community votes00
DR (Domain Rating by Ahrefs)6 +1 (up) since last check23 −1 (down) since last check
Trust Flow (Majestic)37
Citation Flow (Majestic)2334
Referring domains (Majestic)12129

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