Illos 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.

Illos compared with Mermaid Viewer
Detail	Illos	Mermaid Viewer
What it does	Animated illustrations for product sites that your coding agent can extend in the same style	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: 30 small illustrations, no account needed. Individual Pro: $49 one time (save $40 at launch, regular price $89). Team: $249 one payment, covers up to 10 people. Pro includes 55 additional illustrations, toolkit, skills, and 1 year of updates.	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	30 free spot illustrations with no account required Three animation themes: Shader, HUD, and Isometric React component or plain SVG export formats Works with Claude Code, Cursor, Codex and other coding agents Supports light and dark mode Respects reduced motion preferences Toolkit and skills for agent-generated illustrations 55 additional Pro illustrations for sections and heroes New themes released during update year at no extra cost License tied to email with no subscription required	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	Agents draw new illustrations in your chosen style to prevent style drift One-time payment model with all purchased content kept forever Designed specifically for product pages: features, empty states, and docs Usable in client work without resale restrictions Three distinct visual themes for consistent branding	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 votes	0	0
DR (Domain Rating by Ahrefs)	17 +1 (up) since last check	6 +1 (up) since last check
Trust Flow (Majestic)	6	3
Citation Flow (Majestic)	20	23
Referring domains (Majestic)	12	12

5 details filled in for both companies.

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