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Mermaid Viewer vs Kernsetzer

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 Kernsetzer
DetailMermaid Viewer logo Mermaid ViewerKernsetzer logo Kernsetzer
What it doesFree online Mermaid diagram viewer and editor with live preview, AI generation, and exports Book formatting software for self-publishers
StageNot given Not given
FoundedNot given Not given
Based inNot given DE
Pricing modelFreemium Paid
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 One-time purchase price to be announced before launch. Without a license, the software works with basic features indefinitely but exports carry a watermark.
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
  • Supports Windows, macOS and Linux
  • Accepts Word and Markdown manuscripts
  • Generates print-ready PDF for KDP and IngramSpark
  • Creates EPUB 3 for ebook stores
  • Automatic layout of running heads and chapter openers
  • Professional typography with correct quotation marks and dashes
  • German language typography support
  • Works offline without requiring an account
  • Custom theme saving in licensed version
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
  • Runs natively on Windows, macOS and Linux while the best-known alternative only runs on Mac
  • Professional typography handling for both English and German
  • Offline desktop app with no account or cloud dependency required
  • One-time purchase model instead of subscription
  • Includes free tools for KDP formatting and quote/dash fixing
Community votes00
DR (Domain Rating by Ahrefs)6 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)230
Referring domains (Majestic)120

5 details filled in for both companies.

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