QR Code Generator
QR (Quick Response) codes are two-dimensional barcodes that can store text, URLs, contact information, and more. They are widely used for marketing, payments, authentication, and sharing information quickly between devices.
This tool generates customizable QR codes in real-time as you type. You can adjust the foreground and background colors, choose the size, and select the error correction level. Higher error correction allows the QR code to remain readable even if partially damaged or obscured.
How it works
QR codes use Reed-Solomon error correction with four levels: L (~7% recovery), M (~15%), Q (~25%), H (~30%). Higher correction means more data redundancy but larger codes.
Use cases
- Creating QR codes for website URLs and marketing campaigns
- Generating QR codes for WiFi network sharing
- Creating scannable codes for business cards and contact info
- Embedding QR codes in printed materials for digital interaction
Frequently asked questions
Are QR codes free to create and use?
Yes, generating a QR code is completely free and the codes never expire on their own because the data is encoded directly into the pattern. This tool creates them in your browser with no account required. Only dynamic QR codes that redirect through a tracking service may involve a paid subscription.
What error correction level should I choose?
QR codes offer four levels: L recovers about 7% of data, M about 15%, Q about 25%, and H about 30%. Use L or M for clean digital displays, and Q or H when the code will be printed, placed on curved surfaces, or overlaid with a logo. Higher correction makes the code denser but far more resilient to damage.
How do I create a QR code for a WiFi network?
Encode the network details in the format WIFI:S:network_name;T:WPA;P:password;; and generate the QR code from that text. When scanned, most modern phones prompt the user to join the network automatically without typing the password. Choose a higher error correction level if the code will be printed and displayed publicly.
Can I customize the color of a QR code?
Yes, you can change the foreground and background colors, but you must keep strong contrast between them so scanners can read the pattern. Dark foreground on a light background works best, and inverting to light-on-dark can fail on some readers. Avoid low-contrast color pairs that make the modules hard to distinguish.
Should I download a QR code as PNG or SVG?
Choose PNG for quick use on screens, social media, and most web contexts because it is a ready-to-use raster image. Choose SVG for print, large signage, or anywhere you need to scale the code without losing sharpness, since SVG is vector-based and stays crisp at any size.