How to make a QR code
- Choose what the code should do: open a link, show text, join Wi-Fi or start an email.
- Fill in the details. The preview updates as you type.
- Optionally change the colors and error correction.
- Download a PNG for documents and messages, or an SVG for print and design.
Error correction levels
QR codes repeat part of their data so they still scan when smudged, torn or partly covered. More repetition means a sturdier code, but also more modules, so the same content becomes denser.
| Level | Recovers | Good for |
|---|---|---|
| Low (L) | 7% | Screens and clean, large prints |
| Medium (M) | 15% | Most uses: flyers, packaging, menus |
| Quartile (Q) | 25% | Outdoor signs, surfaces that get handled |
| High (H) | 30% | Small prints, rough or curved surfaces |
Tips for codes that always scan
- Print it at least 2 × 2 cm (about 0.8 inches), and larger if people will scan it from a distance.
- Keep a clear margin around the code. The downloads include the standard four-module quiet zone.
- Use dark modules on a light background with strong contrast.
- Test it with a couple of phones before printing a large batch.
Common uses
- Guest Wi-Fi. Print a Wi-Fi code for the kitchen, the reception desk or a holiday let so guests can join without typing the password.
- Linking from print to the web. Put a code on a flyer, menu, poster or business card that opens your website, booking page or review link.
- Feedback by email. Use the Email type on a feedback card or product label, so scanning opens a message to you with the subject already filled in.
- Labels for boxes and equipment. Use the Text type to print labels showing what's in a storage box, or a device's serial number and instructions, that anyone can scan with a phone.