QR Code Generator
URL, text, email, phone, SMS and vCard QR codes.
Runs entirely in your browser. Nothing you enter or upload leaves your device.
What the QR code generator does
A QR code packs a short piece of data into a square grid of dots that a phone camera can read in a second. This generator turns a web address, a note, an email, a phone number, a text message or a contact card into a static code you can print on a poster, a menu, a flyer or a business card.
It saves people typing a long address, lets them save your details in one scan, or opens an email or SMS with the words already filled in.
How to use the QR code generator
- Choose a type (URL, Text, Email, Phone, SMS or vCard) and fill in the form. The code updates as you type.
- Pick an error correction level, from Low (7%) to High (30%). Higher levels survive scratches or a logo on top, but make the code denser.
- Change the dot and background colours if you like, and choose a PNG size between 256 and 2048 pixels.
- Download a PNG for screens and documents, or an SVG for print at any size. Copy encoded text shows exactly what the code contains.
Understanding the results
Under the preview you see the QR version, the grid size in modules and the number of bytes stored. Version 1 is a 21 × 21 grid, and each version adds four modules per side. More content means smaller dots at the same print size, so short links scan more easily.
The data is formatted the way phones expect. An address typed without https:// gets it added, an email becomes a mailto: link, a phone number a tel: link, and a contact card uses the vCard 3.0 format most contact apps import. Every code also gets a plain margin four modules wide, which scanners use to find its edges.
Questions
Do these QR codes expire?
No. They are static: the content is stored in the pattern itself, so they work for as long as the content is valid. There is no tracking and no redirect through UtiBox.
Can I change the content later?
Not for a static code. Make a new code if the link changes.
Which colours can I use?
Keep dark dots on a light background with strong contrast. The tool warns you about inverted or low-contrast colours, which many phone cameras cannot read.
What if my content is too long?
Each code has a maximum capacity, and higher error correction leaves less room. If your content does not fit, the preview says so: shorten it or lower the level. About 2,900 plain characters is the ceiling, and only at the Low level.
Can I make a code for my Wi-Fi?
Use the Wi-Fi QR code generator. It writes the network name, security type and password in the format phones use to join a network.
Is anything uploaded?
No. Codes are drawn in your browser.