Free QR code tools & guides

Make QR codes that actually scan

Create a QR code, check its colours, work out the right print size and see how much data it holds. Every tool runs in your browser, and our guides separate QR specifications, worked examples and practical rules of thumb.

Create a QR code →Read the guides
4Free tools
PNG + SVGPrint-ready downloads
25In-depth guides
0Bytes of your data uploaded
A phone scanning a QR code beside a business card and tool icons

Four tools for the whole life of a QR code

From deciding what to encode to sending the file to the printer.

QR Code Generator illustration

QR Code Generator

Create QR codes for links, text, Wi-Fi, contacts, email, phone and SMS. Download PNG or SVG.

QR Contrast Checker illustration

QR Contrast Checker

Check whether your QR colours have enough contrast to scan, with a live preview.

QR Size Calculator illustration

QR Size Calculator

Work out the minimum print size for a QR code from the scanning distance and data length.

QR Capacity Checker illustration

QR Capacity Checker

Paste a URL or text to see the QR version, grid size and error-correction options it needs.

Checks you can inspect yourself

Inspect the encoded content, colours and dimensions before approving the final print.

Warns before you print

The generator flags low contrast, inverted colours, a missing quiet zone and codes that are too dense.

Check the encoder yourself

Run our public verification checks: encode sample payloads and decode them with an independent reader.

Private by design

Wi-Fi passwords, contacts and links are processed on your device. We never receive them.

Honest about limits

Rules of thumb are labelled as such, and the guides tell you to test a real print.

Start with these guides

Clear explanations with diagrams and numbers you can verify with our tools.

All guides

Quick answers

Is a QR code generated here permanent?

Yes. These are static QR codes: your content is stored directly in the pattern, so they work for as long as the destination exists. See static vs dynamic QR codes.

How big should I print it?

Use one tenth of the scanning distance as a planning rule of thumb, then add a four-module blank border and test the final print. The size calculator does the maths for your content.

Why does my code not scan?

Most often it is too small, has too little contrast, lacks a quiet zone or contains too much data. Work through the nine common mistakes.