How it works:
Enter any text, URL, or data to generate a QR code instantly. Perfect for sharing links, WiFi credentials, contact info, or event details.
Type any text or URL to generate a scannable QR code you can download or screenshot. It's handy for bridging print and digital — posters, menus, business cards, or sharing a link across the room.
What is a QR code?
A QR ("Quick Response") code is a two-dimensional barcode that stores data in a grid of black and white squares, readable by any modern phone camera. Unlike a traditional barcode, it packs data in two directions, so it holds much more — a URL, plain text, Wi-Fi credentials, or a contact card.
QR codes include error correction, which stores redundant data so a code still scans when it's partly dirty, damaged, or covered by a logo. There are four levels (L, M, Q, H); the highest, H, can recover from roughly 30% of the code being obscured — at the cost of a denser pattern.
When and why you'd use it
- Print → web — put a link on a flyer, packaging, or a slide so people can jump to it without typing.
- Share Wi-Fi — a guest scans a code and joins without you reading out a password.
- Menus, tickets, app links — anywhere a tap should replace typing a URL.
Worked examples
Frequently asked questions
Do QR codes expire?
A static QR code (like the ones here) encodes the data directly, so it works forever and needs no internet to "resolve." Codes that "expire" are dynamic ones that point at a third-party redirect service, which can be changed or shut off.
How much data can a QR code hold?
Thousands of characters in theory, but the more you encode, the denser and harder-to-scan the pattern gets. Keep URLs short for reliable scanning.
Why won't my code scan?
Common causes: too much data (too dense), low contrast, printed too small, blurry, or no quiet-zone margin around it. Simplify and enlarge.
Can a QR code contain a virus?
The code itself is just data — it can't run anything. The risk is that it may link to a malicious site, so check the URL your scanner shows before opening it.