Free Tools for Perfect QR Codes
Six standalone tools that help you design, size, test, and decode QR codes — all free, no account required. Built by the same team behind the QRWolf platform.
Design Playground
Experiment with colors, patterns, frames, and logos in a live preview. Export as PNG — no account needed.
Size Calculator
Enter your print distance and get the minimum QR code size. Covers business cards, posters, and billboards.
Contrast Checker
Test foreground and background color combinations. See WCAG contrast ratios and scan reliability scores.
QR Reader
Upload an image or use your camera to decode any QR code. Works entirely in-browser — nothing is uploaded.
Bulk Generator
Paste a list of URLs and generate QR codes in bulk. Download as a ZIP archive of PNGs.
Embeddable Widget
Add a QR code generator to your website with a single script tag. Five widget types, fully configurable.
Why Free?
Great QR codes start with the right foundation. These tools help everyone — whether you use QRWolf for generation or not. When you're ready for dynamic codes, analytics, and team features, the platform is here.
No sign-up, no credit card, no limits.