QR Code Generator

Create a QR code for a website link, plain text, WiFi login, email, text message or phone number, and download it as a PNG image or a scalable SVG for print. The code is generated in your browser, so links and WiFi passwords are never sent to a server, and the codes are static: they contain the information directly and keep working forever, with no tracking or expiry.

Choose a higher error correction level if the code will be printed small, exposed to wear, or covered partly by a logo.

Size of version v = 17 + 4v modules per side

A QR code is a grid of dark and light squares called modules. Version 1 is 21 by 21 and each version adds 4 modules per side, up to version 40 at 177 by 177. The three large squares in the corners let a camera find and straighten the code. Data is protected by Reed-Solomon error correction, so part of the code can be damaged and still read. The format is defined by the ISO/IEC 18004 standard; Denso Wave invented it in 1994.

A WiFi code for a guest network encodes WIFI:T:WPA;S:Guest;P:welcome-2026;;. Most phone cameras offer to join the network when they scan it.

A link to https://www.example.com/menu fits in a version 3 code at medium error correction. Shorter links make smaller, easier-to-scan codes.

• Keep a white margin (the quiet zone) of at least four modules around the code.
• Use dark modules on a light background with strong contrast; inverted or low-contrast colors fail on some scanners.
• A common rule of thumb is that the code should be about one tenth as wide as the scanning distance, so a poster read from 2 m away needs a code around 20 cm wide.
• Use the SVG download for print so the code stays sharp at any size.
• Test the printed code with more than one phone before printing in bulk.

Many commercial QR services create dynamic codes, which point to a short link on the provider's server that then redirects to your real address. That lets you change the destination later and count scans, but the code stops working if the subscription ends or the service closes, and every scan passes through a third party. The codes made here are static: the destination is stored in the pattern itself. If you might need to change a printed link later, point the code at a page on your own website that you control, and update that page instead.

Because a QR code hides its contents until scanned, criminals sometimes stick fake codes over real ones on parking meters and posters to send people to phishing sites. When you scan a code, check the web address your phone shows before opening it, and be cautious with codes that ask for payment or login details. If you publish codes, place them where they are hard to tamper with and print your web address next to them so people can check it.