Mermaid Viewer vs OwnQR

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 OwnQR
Detail	Mermaid Viewer	OwnQR
What it does	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports	Dynamic QR code generator with one-time $15 payment, no recurring subscription
Stage	Not given	Startup
Founded	Not given	2025
Based in	Not given	CA
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: unlimited static QR codes, no account required. One-Time Plan: US$15 for one editable dynamic QR code, or US$39 for five codes (about $7.80 each). All plans include SVG and PNG downloads, custom design options, and no recurring subscription.
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	Unlimited URL edits after purchase with no reprinting required Real-time scan analytics with location, device, and time data Custom design with gradients, logo overlay, and rounded corners SVG vector and PNG raster export up to 4096 pixels Support for 12 languages with localized pricing in 4 currencies 30-day trash recovery for accidentally deleted QR codes Google Safe Browsing API verification to prevent malicious redirects
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	Editable destination URL after printing with same QR code image Free static QR codes with no account or signup required Sunset Pledge guarantees 5-year redirect service if OwnQR discontinues Grandfather clause protects existing customers from future price or plan changes
Community votes	0	0
DR (Domain Rating by Ahrefs)	6 +1 (up) since last check	19 −1 (down) since last check
Trust Flow (Majestic)	3	4
Citation Flow (Majestic)	23	28
Referring domains (Majestic)	12	45

5 details filled in for both companies.

More alternatives to Mermaid Viewer More alternatives to OwnQR