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Normal Map Bench vs Mermaid Viewer

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

Normal Map Bench compared with Mermaid Viewer
DetailNormal Map Bench logo Normal Map BenchMermaid Viewer logo Mermaid Viewer
What it doesBrowser-based tool for generating OpenGL and DirectX tangent-space normal maps from images Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingNot given 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
  • Local image processing
  • OpenGL and DirectX output
  • Sobel and Scharr filters
  • Material lighting preview
  • PNG export
  • Smoothing and strength controls
  • Edge behavior control (clamp or wrap)
  • Tiled preview
  • Height inversion
  • Interactive light inspection
  • 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
  • Runs entirely in the browser with no server upload or account required
  • Supports both OpenGL and DirectX normal map formats
  • Choice of Sobel or Scharr gradient filters for different texture quality
  • Free with no advertising, AI model, or payment system
  • Interactive material lighting preview to verify results
  • 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
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check6 +1 (up) since last check
Trust Flow (Majestic)33
Citation Flow (Majestic)2523
Referring domains (Majestic)1612

4 details filled in for both companies.

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