Mermaid Viewer vs CertificatesMaker

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 CertificatesMaker
Detail	Mermaid Viewer	CertificatesMaker
What it does	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports	Design professional certificates with AI or drag-and-drop templates, generate in bulk, and download without watermarks
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
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	Free plan with watermark. Pro: $8.99 first month (regularly $9.99/month), $79 per year (regularly $149/year), or $149 for 27 months (2 years plus 3 months). One-time option: $12 per certificate.
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	AI certificate generation Drag-and-drop editor Bulk CSV/Excel generation PDF and PNG downloads QR code integration Custom branding 50+ professional templates Save designs as templates Manual data entry
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	AI-powered certificate design in seconds with no design skills needed Bulk generation of hundreds of certificates from CSV files Free plan with no credit card required to start Enterprise-grade security and data privacy Watermark-free downloads and HQ export on Pro plan
Community votes	0	0
DR (Domain Rating by Ahrefs)	6 +1 (up) since last check	2 no change since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	23	9
Referring domains (Majestic)	12	10

5 details filled in for both companies.

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