QR Code Generator
Create QR codes for links, text and Wi-Fi
🔒 100% free · no signup · files never leave your device
A QR code stores data as a grid of black and white modules, and one of its cleverest features is Reed–Solomon error correction: redundant data woven into the pattern so the code still scans when dirty, scratched or partially covered. The standard offers four levels — L (7% damage tolerance), M (15%), Q (25%) and H (30%) — which is exactly how restaurants print logos in the middle of their codes. Higher correction makes the code denser, so it's a deliberate trade-off, not free insurance.
This free QR code generator creates permanent codes for URLs, plain text, Wi-Fi credentials and more, with adjustable size and error-correction level, downloadable as PNG. Because the code encodes your data directly — rather than a redirect through some shortening service — the codes never expire and keep working even if this site disappears. Everything is generated locally in your browser, so Wi-Fi passwords and private links aren't transmitted anywhere. Print them on business cards, posters, product packaging or guest-room signs with full confidence they'll scan for years.
Why use QR Code Generator
Sharing Wi-Fi without spelling passwords
A Wi-Fi QR code on the wall lets guests and customers join the network with a single camera scan.
Linking print materials to the web
Posters, flyers and business cards bridge to a URL — no one has to type a long address from paper.
Product packaging and menu codes
Link a package to manuals or a table tent to the full menu; with high error correction the code survives handling wear.
Event check-in and ticketing
Unique text codes per attendee scan at the door with any standard reader, no special hardware needed.
Pro tips
- Choose error correction H if you plan to overlay a logo — it tolerates up to 30% of the code being obscured.
- Shorter content makes scannable codes: use a short URL, since every extra character adds modules and shrinks each one at a fixed print size.
- Respect the quiet zone — the blank margin around the code. Cropping it is the most common reason printed codes fail.
- Test the printed code at real size and distance with an average phone before committing to a large print run.
- Dark modules on light background only; inverted (light-on-dark) codes fail on many older scanners.
How to use QR Code Generator
- 1Enter a link, text or Wi-Fi data
- 2Adjust size and error correction
- 3Download the PNG
Frequently Asked Questions
Do the QR codes expire?▾
Never. The QR code encodes your data directly — it works forever with no dependency on our site.
What is error correction?▾
It lets the QR code still scan when partially damaged or overlaid with a logo. 'High' tolerates up to 30% damage.