What Is a QR Code?
A QR (Quick Response) code is a two-dimensional barcode that stores information — a web address, WiFi credentials, contact details, or plain text — in a grid of black and white squares. A smartphone camera or QR scanning app reads that pattern and instantly acts on it, without anyone needing to type a URL or manually enter details by hand.
How to Create a QR Code
- Choose a QR code type above, such as Website URL, WiFi, or Contact.
- Fill in the required fields for that type.
- Optionally customize the color, style, or add a logo.
- Click Generate QR Code.
- Download it as a PNG or SVG file.
How to Create a QR Code With a Logo
After generating a QR code, use the Add Your Logo section to upload a PNG, JPG, or WebP image from your device. The logo is placed in the center of the code and the surrounding modules are automatically protected so scanning still works reliably. Error correction is automatically raised to its highest level whenever a logo is present, which is what gives the code enough redundancy to remain readable even with part of the pattern covered.
How to Make a QR Code Easy to Scan
A few factors matter more than visual style when it comes to reliable scanning:
- Contrast — a dark code on a light background (or vice versa) scans far more reliably than two similar tones. This tool checks contrast automatically and warns you if it's too low.
- Quiet zone — the clear margin around a QR code that scanners use to detect where the pattern begins and ends. Cropping too close to the edge can prevent scanning entirely.
- Size — a QR code needs to be large enough, relative to the scanning distance, for a camera to resolve its individual modules.
- Error correction — higher error correction lets a code keep working even if part of it is damaged, obscured, or covered by a logo, at the cost of a denser pattern.
- Logo size — a small, centered logo is generally safe; covering too much of the code, even with high error correction, risks making it unscannable.
Where Can You Use QR Codes?
- Websites — send people straight to a page without typing a URL.
- WiFi — let guests join your network with a scan instead of typing a password.
- Business cards — link directly to your contact details or a portfolio.
- Restaurant menus — point to a digital menu instead of a printed one.
- Contact information — add yourself to someone's phone contacts instantly.
- Events — share event details that can be added to a calendar with one scan.
- Marketing materials — connect printed flyers, posters, or packaging to an online destination.