TIL: Building a Simple QR Generator
Mai Chi Bao

Mai Chi Bao @mrzaizai2k

About: A Senior Machine Learning Engineer with expertise in AI, ML, and DL!

Location:
Ho Chi Minh, Vietnam
Joined:
Aug 25, 2024

TIL: Building a Simple QR Generator

Publish Date: Sep 15
5 2

I built a lightweight, open-source tool to create customized QR codes.

No subscriptions, no paywalls — just a straightforward QR generator that works right in your browser 🚀.

👉 Try it here: Simple QR Generator


📑 Table of Contents


💭 Why I Built This

Most QR code tools online feel bloated or restrictive:

  • Many require accounts or subscriptions just to download a QR code.
  • Some lock basic features like color, logo, or export behind a paywall.
  • Others are overloaded with ads, making them slow and frustrating.

I just wanted something clean, simple, and free — a tool where you can generate and customize QR codes without hassle.

That’s why I created Simple QR Generator — a project that anyone can use instantly in their browser.


✨ Features

  • Generate QR codes from any text or URL.
  • Customize:
    • Colors
    • Shapes
    • Styles
  • Add a logo (upload your own or use an image URL).
  • Adjust:
    • Size
    • Margin
    • Error correction level
  • Export to PNG or SVG.
  • Copy QR codes directly to clipboard.

⚡ How It Works

  1. Enter your text or URL in the input box.
  2. Adjust customization options (color, style, size, error correction).
  3. (Optional) Upload or link a logo to embed inside the QR code.
  4. Click Generate, then either:
    • Export as PNG or SVG, or
    • Copy directly to clipboard for quick use.

All of this happens entirely in your browser — no server-side processing, no data collection.


🖥️ Demo Screenshot

Here’s a quick look at the tool in action 👇

You can try it live here 👉 Simple QR Generator


💡 Why I Like It

  • Lightweight: works instantly in any browser.
  • No limits: all features are free and open-source.
  • Customizable: from logos to colors, you can make QR codes match your style.
  • Practical: whether it’s sharing a link, business info, or Wi-Fi credentials, it just works.

It started as a small side project for myself, but it turned into a neat tool worth sharing.


🔗 Reference

All the code is open-source on my GitHub:

👉 mrzaizai2k/simple_qr_generator

Feel free to clone it, star it ⭐, or suggest improvements.

Comments 2 total

  • Mai Chi Bao
    Mai Chi BaoSep 11, 2025

    👍 Finally, a QR generator that doesn’t ask me to sign up or pay. Love it!

  • Owen Arthur
    Owen ArthurSep 28, 2025

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