Flag Maker Free 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.

Flag Maker Free compared with Mermaid Viewer
Detail	Flag Maker Free	Mermaid Viewer
What it does	Free online flag creator with no sign-up or watermarks	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	Not given
Pricing model	Free	Freemium
Pricing	Free. Optional paid HD print file (300 DPI PDF) planned; all current features stay free.	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	17 layouts including bicolor, tricolor, Nordic cross, saltire, canton, chevron and border 20 symbols: star, crescent, sun, triangle, square, shield, mountains, waves and more PNG export from 600px to 4800px wide Scalable SVG vector export Animated waving GIF and WebM video export Printable pages in US Letter and A4 formats Black-and-white coloring page outlines Color pickers and one-click color palettes Undo and redo with keyboard shortcuts Five standard flag aspect ratios: 2:3, 1:2, 3:5, 1:1 and 10:19	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	No sign-up, watermarks or account required Real vector output as SVG files that stay sharp at any size Private by design – flags drawn in browser and never uploaded Works on phones, tablets and desktop with no installation required	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)	Not checked yet no change since last check	6 +1 (up) since last check
Trust Flow (Majestic)	0	3
Citation Flow (Majestic)	14	23
Referring domains (Majestic)	1	12

5 details filled in for both companies.

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