Create AI-designed QR codes that scan perfectly and match your brand.
Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
Stage
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Pricing model
Freemium
Freemium
Pricing
Not given
Free: no account required, all diagram and chart makers, PNG/SVG/PDF export, no watermark. Pro: Monthly $9.99 a month, Yearly $99.99 a year with 7-day free trial, Lifetime $239.99 once. Euro area: €10.99 a month, €109.99 a year, €259.99 once (VAT included).
Key features
Dynamic QR codes with editable destination URLs
Scan analytics tracking scans, devices, locations, and timing
Never-expiring QR codes that work indefinitely
QR codes scan-tested on real iPhones and Android phones
Multiple download formats: PNG, SVG, and WebP
QR code generation in 25 to 30 seconds
Watermark-free downloads on all plans
Flowchart and process diagram maker with canvas and text-to-diagram modes
Text-to-diagram tools for UML, ER and sequence diagrams
Chart tools: pie chart, line graph, gauge and Sankey diagram
Automatic diagram layout from typed text
Export to PNG, SVG and PDF without watermark
Share diagrams with share links
Pro: editable .drawio export and vector PDF
Pro: multi-page documents and layers
Diagram checks for unlabelled branches and dead ends
Works on phone and computer
What makes it different
QR codes that never expire and continue working after subscription cancellation
AI-generated artistic designs created in under 30 seconds
Built-in scan analytics without additional setup or tracking pixels
Completely free with no account required and no watermark on exports
Nothing uploaded: all work stays on your device in your browser
Results computed by the same tested code, not manually typed
Multiple export formats: PNG at 4 sizes, SVG and PDF
Converts between formats: Mermaid to draw.io, SQL to ER, Visio to flowchart
NG QRCode
Diagram Smith