Free generator

QR Code Generator

Enter a link or text, pick a size and colors and the generator makes a QR code you can download as a PNG file.

By iToolsLab Editorial TeamUpdated 14 October 2026How we build tools

What is qr code generator?

QR codes link the physical world to the web. They appear on menus, posters, business cards, packaging and payments. A phone camera reads them with no extra app.

This generator creates the code in your browser, so the text you enter is not uploaded anywhere. The codes are static, which means they never expire and do not track scans.

How to use the qr code generator

  1. Enter the link or text.
  2. Choose size and error correction. Higher correction makes the code more robust but denser.
  3. Press Calculate and download the PNG.

How the qr code generator works

The text is encoded into a QR matrix using the standard Reed Solomon error correction. The matrix is drawn on a canvas with a quiet zone of four modules around it, as required for reliable scanning.

Worked example

A short URL gives a simple code that scans easily at small sizes. A long URL makes a denser code that needs a bigger print size.

Common uses of the qr code generator

  • Linking a printed flyer or poster to a web page.
  • Sharing Wifi, contact or payment details.
  • Adding a link to packaging, menus and business cards.
  • Directing event guests to a schedule or form.
  • Linking an app store page from a presentation.

Tips and common mistakes

Keep strong contrast between dark and light colors. Dark on light scans best.

Test the code with two or more phones before printing.

Background: what to know before you rely on it

The QR code was invented in 1994 by Denso Wave in Japan to track car parts. The name stands for quick response. It stores data in a grid of dark and light squares with three large finder patterns in the corners that help scanners find the orientation. Error correction lets a code be read even if part is damaged or covered by a logo, at the cost of a denser pattern. Quiet space around the code is needed for reliable scans. Printing at too small a size is the most common cause of failure, so test with several phones before you print thousands.

Private, free and fast

This tool runs entirely in your browser. What you type or choose is not uploaded to a server and is not saved after you close the page, which keeps it fast and private. It is free to use as often as you like. See more in all generators, or browse the full list of tools.

Frequently asked questions

Do QR codes expire?

Static codes like these never expire.

Is it free for commercial use?

Yes.

What size should I print?

At least 2 cm square for close scanning and larger for distance.

Does it track scans?

No.

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Results are for information and education. For legal, financial, medical or security decisions, check with a qualified professional. Do not use online generators for regulated draws or critical security keys.