Create QR Codes from Scratch with Ruby, ruby-libgd, and rqrcode

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April 15, 2026

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Today I created a flyer to send to Ruby on Rails Kaigi about my library stack. I strongly recommend keeping an eye on that conference.

After fighting with QR code generators, I noticed that sometimes the QR redirects through other websites. It’s frustrating because I can’t share a QR code with insecure content.

I found the gem rqrcode “A Ruby library that encodes QR Codes”.

After that, I thought I could generate the QR code using Ruby. Since I have ruby-libgd, I can offer the possibility to create QR codes entirely in Ruby!

👉 Read the full article.

Create QR Codes from Scratch with Ruby, ruby-libgd, and rqrcode – Linking Ruby knowledge from the most remote places in the world.

April 15, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and …

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