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Mermaid Viewer vs TopPNG

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 TopPNG
DetailMermaid Viewer logo Mermaid ViewerTopPNG logo TopPNG
What it doesFree online Mermaid diagram viewer and editor with live preview, AI generation, and exports Free PNG images, icons, vectors and backgrounds for designers and creators
StageNot given Established
FoundedNot given 2018
Based inNot given EG
Pricing modelFreemium Free
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 Not given
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
  • One million free PNG images
  • High-quality vectors and backgrounds
  • Handpicked image collections
  • Creative tools for designers
  • User content submission
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
  • Completely free with no subscriptions or hidden fees
  • Millions of images handpicked for quality
  • Trusted by thousands of creators since 2018
Community votes00
DR (Domain Rating by Ahrefs)6 +1 (up) since last check48 no change since last check
Trust Flow (Majestic)314
Citation Flow (Majestic)2323
Referring domains (Majestic)12405

4 details filled in for both companies.

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