What is the maximum data length for a QR code?

QR codes can hold up to approximately 4,296 alphanumeric characters or 7,089 numeric characters at the lowest error correction level. The qrcode library automatically selects the appropriate QR version.

Can I use a transparent background?

The background color picker sets a solid color. Transparent backgrounds are not supported — the Canvas always has a solid background.

What size should I use for print?

For print use, generate at 512px or 1024px for high resolution. QR codes should be at least 2cm × 2cm when printed for reliable scanning.

Is my data sent to a server?

No. The qrcode library runs entirely in your browser. Nothing is transmitted.

QR Code Generator

Generate QR codes for any text or URL with custom size, foreground, and background colors.

How to use this tool

1Enter text or a URL in the 'Text or URL' field.
2Set the Size (px) and choose Foreground and Background colors.
3The QR code updates automatically.
4Click 'Download PNG' to save the QR code image.

About QR Code Generator

QR codes are the fastest way to share a URL, contact card, or text with someone who has a phone. This generator uses the qrcode npm library loaded in your browser to render a QR code onto a Canvas element. Enter any text or URL, set the size in pixels (64-1024, step 32), and choose foreground and background colors with native color pickers. The QR code updates automatically as you type or change settings. Click 'Download PNG' to save the Canvas as a PNG file. The qrcode library uses error correction level M by default and a 2-module margin. QR codes can encode up to approximately 4,000 characters depending on the error correction level and character type. Marketers adding QR codes to print materials, developers testing QR scanning flows, and anyone who needs to share a link without typing it are the primary users.

Frequently asked questions

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