Free live Mermaid diagram editor with no signup required
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
Free
Freemium
Pricing
Not given
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 as you type
21 diagram types including flowcharts, sequence, class, state, ER, Gantt, git graph, mindmap and timeline
Two-way editing for flowcharts
SVG and PNG export
Share diagrams as URLs with embedded diagram content
Built-in template picker and cheatsheet
No account or signup required
Works entirely in browser with local storage
Open Mermaid Live Editor links
Mermaid v11 syntax support
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 signup, paywall, or data collection required
Diagrams stay in your browser's local storage by default
Two-way editing that updates code when you edit the canvas
Live preview with no render button required
Clean SVG export for professional use in docs and slides
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
FlowViz
OwnQR