ChartKit 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.

ChartKit compared with Mermaid Viewer
Detail	ChartKit	Mermaid Viewer
What it does	Think-cell-style charts and AI for Google Workspace	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	DK	Not given
Pricing model	Freemium	Freemium
Pricing	Free: €0, 10 charts per month. Pro: €10/month (billed monthly) or €80/year. Enterprise: custom pricing per seat.	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	Waterfall, Mekko, Gantt, and other advanced chart types Charts linked to Google Sheets that auto-update AI Chat and writing pill using your own Claude or ChatGPT Claude connector to insert charts from claude.ai Deck checks for off-brand colors, wrong fonts, and conflicting numbers Chart annotations including Delta, CAGR, level line, and axis break Team palette and shared layouts for brand consistency Slide library with approved slides searchable across team Desktop app for Mac and Windows to build charts and export as PNG Align, arrange, and distribute tools for slide layout	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	Think-cell-style charts in Google Slides—the only tool to bring advanced charting to Slides Runs on your own Claude or ChatGPT, adding no model bill Colleagues see charts without needing ChartKit installed Numbers on slides stay linked to Sheets and refresh automatically Data is never trained on; only decks you open are accessed	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)	3	3
Citation Flow (Majestic)	10	23
Referring domains (Majestic)	3	12

5 details filled in for both companies.

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