7 min read
2026-02-10
A QR code (Quick Response) is a two-dimensional barcode capable of storing up to 4,296 characters. It was developed in 1994 by Denso Wave and is now used everywhere — from restaurant menus to payment systems.
URLs — links to websites and landing pages
Text — any textual information
Wi-Fi — network connection parameters
Contact (vCard) — name, phone, email
Email — automatic email creation
Geolocation — map coordinates
Decide what will be encoded: a link, text, contact, or Wi-Fi.
Fill in the data field. For URLs, make sure the link starts with https://.
| Parameter | Description | Recommendation |
|---|---|---|
| Size | Image resolution | 256×256 and above |
| Error Correction | Damage resistance | Level M or H |
| Format | PNG, SVG, JPEG | SVG for print |
Save the QR code in the desired format. SVG is suitable for print, PNG — for the web.
L (Low) — recovers 7% of data
M (Medium) — recovers 15% of data
Q (Quartile) — recovers 25% of data
H (High) — recovers 30% of data
See also: Barcode Generator, Base64 Encoding, UTM Tag Generator