Create QR codes for URLs, text, phone numbers, emails, Wi-Fi credentials and more. Customize colors and download as PNG — 100% free.
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A QR code (Quick Response code) is a two-dimensional barcode that can store various types of information — a URL, plain text, contact info, Wi-Fi credentials, phone numbers, and more. Users scan them with a smartphone camera to instantly access the encoded content, without typing anything.
QR codes encode data as a grid of black and white squares. The three large squares in the corners help the scanner detect the code's position and orientation. The rest of the pattern contains the actual data, plus error-correction bits that allow the code to be read even if part of it is damaged or obscured (up to 30% depending on the correction level).
QR codes have 4 error correction levels. Higher levels mean the code can be scanned even if partially damaged, but make the code denser (more squares in the same size):
A QR code stores your data in a pattern of squares plus mathematical redundancy called error correction — up to 30% of the code can be damaged and it still scans. That is also why a small logo in the middle usually works.
All QR codes are generated locally in your browser. Your text, URL or Wi-Fi password is never sent to any server. This tool works completely offline once loaded.
Yes, 100% free. There are no watermarks, no tracking pixels, no expiration dates. You own the QR code you generate and can use it commercially without any restrictions.
No. All QR codes are generated entirely in your browser using JavaScript. Your text, URL or Wi-Fi password is never uploaded or stored anywhere. You can verify this by using the tool offline — it will still work.
For digital use (websites, emails, apps), 256-512 pixels is enough. For printing, use 1024+ pixels to ensure it stays sharp when scaled. For large posters or banners, use the maximum size (1024) and scale as needed.
Yes. You can change both the foreground (dark squares) and background colors. Just remember to keep good contrast — dark on light works best. Avoid inverting colors, as many scanners struggle with light codes on dark backgrounds.
Static QR codes (like the ones this tool generates) never expire — they contain the data directly in the pattern. They will work as long as QR code scanners exist. Dynamic QR codes from some services can expire, but ours are permanent.
Select 'Wi-Fi' from the type selector, then enter your network name (SSID), password and security type. When someone scans the code, their phone will offer to connect to the network automatically — no typing required.