Free QR Code Tools Guide: Links, Wi-Fi, WhatsApp, Contacts and More

QR codes are everywhere: menus, posters, product boxes, business cards and event tickets. They move people from something physical to something digital in one scan. Our QR code tools create nine kinds of code, each designed for a specific job. They are generated in your browser and contain no tracking redirect, so a code you print today keeps working without depending on our site^[1].

How a QR code works

A QR code stores information in a pattern of black and white squares that a phone camera can read in a fraction of a second. The format was invented by DENSO WAVE in 1994, and its official history explains how it was designed to be read quickly and from any angle^[2]. QR codes also include error correction: extra data that lets a code scan even if part of it is dirty, scratched or covered by a logo. Higher error correction makes a code more robust but also denser.

All our codes are static: the information is encoded directly in the pattern. There is no account, no expiry date and no scan tracking. The trade-off is that you cannot change where a static code points after printing, so check the content carefully first.

The all-in-one generator

QR Code Generator creates every type of code in one place. Pick a type, fill in the details and watch the preview update as you type. You can change the size, the colours and the error-correction level, then download a PNG for screens and documents, an SVG for professional printing, or print directly. Use it when you want full control over the design.

Codes for specific jobs

The other eight tools are focused versions of the generator with the right fields and defaults for one purpose.

URL QR Code opens a web page: your website, online shop, booking page, Google review page or a digital menu. The link is encoded directly, so visitors go straight to your page. Shorter URLs make simpler codes that scan more reliably, and you can add UTM parameters to measure scans in your analytics.

Wi-Fi QR Code lets guests join your network by pointing their camera at it: the phone reads the network name, password and security type and offers to connect. It is ideal for cafés, offices, rentals and home guest networks. Your password is processed in your browser and never sent to us. Create a separate guest network so visitors cannot reach your private devices, and print the network name under the code for older phones.

WhatsApp QR Code opens a chat with your number, optionally with a pre-filled message such as "Hi, I would like to place an order". It uses WhatsApp's own click-to-chat links, so it works without the customer saving your number first^[3]. Enter the full international number with the country code and no leading zero. A pre-filled message that names where the code was ("Hi, I saw your poster at the mall") also tells you which of your posters is working.

vCard QR Code shares your contact details in the standard vCard format. When scanned, the phone offers to save a new contact with name, company, job title, phone numbers, email, website and address already filled in. Put it on business cards, name badges and email signatures. Include only the fields people really need: fewer fields make a simpler, more reliable code.

Email QR Code opens a new email to you with the subject and message already filled in, so people only need to press send. A clear subject such as "Quote request – Poster A" makes replies easy to sort.

Phone QR Code starts a call to your number. It suits service stickers on appliances, delivery and taxi adverts, and property signs. Always use international format, and print the number as text next to the code as well.

Location QR Code opens a place in the scanner's map app, ready for directions. Create it from GPS coordinates, your current location or an address. Coordinates give the most precise point, which helps with back entrances, parking areas and event sites. The map link format works on every phone.

Text QR Code stores plain text that appears on screen when scanned, with no internet connection needed. It suits inventory labels, serial numbers, machine instructions and classroom activities. Keep the text short; for more information, link to a web page instead.

Printing tips that prevent scanning problems

• Contrast: a dark code on a light background scans best. Avoid light-on-dark and low-contrast colour pairs.
• Size: print at least 2 × 2 cm (about 0.8 inch), and much larger for posters read from a distance. A rough rule is one unit of code width for every ten units of scanning distance.
• Quiet zone: leave a clear margin around the code, so the camera can find its edges.
• Test before printing: scan the downloaded code with two different phones before ordering a print run.
• Format: use SVG for print shops; it stays sharp at any size.

Which tool should you use?

• Send people to a website: URL QR Code.
• Share Wi-Fi with guests: Wi-Fi QR Code.
• Start customer conversations: WhatsApp QR Code.
• Share your contact details: vCard QR Code.
• Collect emails or calls: Email QR Code or Phone QR Code.
• Help people find a place: Location QR Code.
• Label something offline: Text QR Code.
• Custom colours and settings: QR Code Generator.

If you have never made a QR code, start with the QR Code Generator. It shows every option in one place, and the live preview makes it easy to see how each setting changes the code.