TL;DR: Made a QR generator with no ads, no login, no server tracking. Just UTM parameters + logos + high-res downloads.

🔗 Try it here | 📖 Full story on Medium

Why I built this

Needed QR codes for marketing campaigns. Every existing service had the same issues:

• Force you to sign up for basic features
• Watermark their branding on YOUR QR codes
• Replace your URLs with their redirect domains (!!)
• Track every scan and collect your data

What makes this different

✅ 100% client-side – No data ever leaves your browser
✅ UTM parameter presets – Facebook, email, print campaigns with one click
✅ Logo integration – Drag & drop, auto-centers perfectly
✅ High-res downloads – 1200x1200px for print quality
✅ Real-time preview – See changes instantly
✅ Open source – Check the code yourself

Tech stack

• Vanilla JavaScript (no frameworks needed)
• qrcode-generator library
• Canvas API for rendering
• GitHub Pages hosting
• Zero dependencies on external services

The entire thing runs in your browser. I literally cannot see what QR codes you generate because there’s no server.

Perfect for

• Marketing campaigns with UTM tracking
• Business cards and event materials
• Product packaging QR codes
• Anyone who values privacy

No registration, no payment, no bullshit. Just works.

GitHub: https://github.com/nuung/qrcode-gen
Live Demo: https://nuung.github.io/qrcode-gen/