Mermaid Viewer vs IconFast

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 IconFast
Detail	Mermaid Viewer	IconFast
What it does	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports	Free app icon generator for Android, iOS, mobile, and desktop apps
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	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	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	Customize colors and graphics Generate from font icons Upload custom images Download as PNG format No design skills required Browser-based tool
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	Create professional app icons in seconds without design experience Multiple icon generation methods available Intuitive interface for beginners and experts
Community votes	0	0
DR (Domain Rating by Ahrefs)	6 +1 (up) since last check	4 no change since last check
Trust Flow (Majestic)	3	3
Citation Flow (Majestic)	23	21
Referring domains (Majestic)	12	13

4 details filled in for both companies.

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