QR Vault

Free QR code generator

Make a QR code for a website, plain text, a WiFi network or a contact card. Codes are generated on your device and are static, so they never expire.

4Free Tools
0Signups Needed
100%Browser Based
QR Code Generator
256px
📱 Your QR code will appear here

What are QR codes used for?

QR codes are two-dimensional barcodes that store information in a grid of black and white squares. Smartphones can read them instantly using the built-in camera. They are used to share website links, WiFi credentials, contact details, payment information and any other short piece of data that would be inconvenient to type out manually.

A URL QR code lets you print a link on a physical surface like a flyer, poster, business card or product packaging so that anyone nearby can visit the page without typing the address. A WiFi QR code lets guests connect to your network without telling them the password. A contact QR code lets someone save your details to their phone with a single scan.

How QR Vault generates your codes

Everything runs in your browser. When you click Generate, the QR code is built entirely on your device using JavaScript. No data is sent to any server. This means your WiFi password, contact details and URLs are never transmitted or stored anywhere outside your own screen.

The generated code can be downloaded as a PNG image and used in print or digital materials. For best print quality, use the largest size setting before downloading.

Frequently asked questions

How much data can a QR code hold?
A standard QR code can store up to around 3000 characters of text or about 7000 numeric digits. For URLs and short text this is more than enough. Very long strings may result in a denser, harder to scan code, so keep your content concise where possible.
Can I use a coloured QR code?
Yes. Use the foreground and background colour pickers to customise your QR code. Make sure there is enough contrast between the two colours. Dark foreground on a light background works best. Avoid using light colours on white or dark colours on black as scanners may struggle to read low-contrast codes.
Do QR codes expire?
QR codes themselves do not expire. Once generated, a static QR code will work permanently as long as the destination it points to still exists. If you link to a URL, make sure that URL remains active. The QR code pattern itself has no expiry date built into it.
What size should I use for printing?
For digital use, 256px is fine. For print, use the maximum 512px setting for best quality before downloading. When placing in print materials, a minimum physical size of around 2cm by 2cm is recommended so that smartphone cameras can reliably read the code from a normal scanning distance.
QR Code Scanner
🖼️

Click to upload or drag and drop an image here

PNG, JPG, GIF, WebP supported

QR Code Decoded
No QR code found in the image. Make sure the image is clear and the code is fully visible.
Barcode Generator
📊 Your barcode will appear here
Barcode Scanner
🖼️

Click to upload or drag and drop an image here

PNG, JPG, GIF, WebP supported

Barcode Decoded
No barcode found in the image. Make sure the image is clear and the barcode is fully visible.

How to use the QR Code Generator tool

  1. Choose URL, Text, WiFi or Contact.
  2. Fill in the details.
  3. Generate the code and download it.

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