Is my data sent to a server?

No. The QR code is generated entirely in your browser using JavaScript. Nothing you type is transmitted anywhere.

What is the error correction level?

Error correction allows QR codes to be read even when partially obscured. Level L recovers up to 7% of data, M up to 15%, Q up to 25%, and H up to 30%. Use H when printing on surfaces that may get dirty or damaged.

What is the maximum input length?

QR codes support up to around 4,296 alphanumeric characters or 2,953 bytes of binary data. Very long inputs produce denser codes that are harder to scan reliably.

Can I generate a QR code for a Wi-Fi network?

Yes. Type the Wi-Fi string in the format WIFI:S: ;T: ;P: ;; and generate the code. Most modern phones can scan and auto-connect.

What file format does the download produce?

The download button exports the QR code as a standard PNG image, suitable for print and digital use.

QR Code Generator

Name: QR Code Generator
Availability: InStock
Author: Nham Vu

Paste any text or URL to instantly generate a downloadable QR code — no account required.

QR Code Input

Text or URL

Size (px)

Error Correction

Enter text above and click Generate

Done!

Summary

Paste any text or URL to instantly generate a downloadable QR code — no account required.

How it works

Paste or type any text or URL into the input field.
The QR code image is generated instantly in your browser.
Adjust the image size (pixels) and error correction level if needed.
Click "Download PNG" to save the QR code image to your device.
Scan the QR code with any mobile camera or QR scanner app.

Use cases

Share a website URL without typing a long address.
Embed Wi-Fi credentials in a printable QR code.
Add a QR code to a business card or flyer.
Link a physical product to its online manual or support page.
Quickly transfer a text snippet between devices.
Create QR codes for vCard contact information.
Test QR scanner integrations during development.
Generate QR codes for event check-in systems.

Frequently Asked Questions

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Last updated: 2026-05-30 · Reviewed by Nham Vu