Every "free" tool I tried had the same 3 problems:

1. Ugly watermark on the QR code

2. Paywall to change colors or add logo

3. Blurry PNGs that looked terrible when printed on stickers

So I decided to build my own in 7 days.

The Problem: Making QR Codes That Don't Suck

Most QR tools give you a 200x200 pixel PNG. Try printing that on a sticker and it looks awful.

I needed 3 things:

1. **High quality**: SVG export so it never gets pixelated

2. **Branded**: Add logo in center + custom colors

3. **No backend**: Should work 100% in the browser

How I Built It

I used only HTML, CSS, and JavaScript. No server, no database.

The biggest challenge was adding a logo in the center without breaking the QR.

Turns out QR codes have "error correction". If you set it to `Level H`, the QR can still be scanned even if 30% of it is damaged/covered.

That's exactly where the logo goes.

Here's the core logic:

```javascript

QRCode.toCanvas(canvas, url, {

errorCorrectionLevel: 'H', // This is the key

width: 500,

color: { dark: "#000", light: "#FFFFFF" }

})

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