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Short, practical guides on QR codes: how to choose them, configure them, and understand what happens under the hood when you scan them.
09/15/2026
PNG, SVG, PDF, or JPEG: which format to choose for your QR code
The real differences between the four download formats and how to pick the right one for where you'll use your QR code.
09/15/2026
WPA, WEP, or none: which security to pick for your WiFi QR code
The difference between WPA, WEP, and an open network, and how to know which one to pick so your QR code connects on the first try.
09/15/2026
URL, text, phone, email, or WiFi: which QR type fits each case
A quick guide to choosing the right content type based on what you're trying to achieve with your QR code.
09/15/2026
Error correction levels in a QR code: L, M, Q, and H explained
What each error-correction level means, when to use each one, and why it matters if you're adding a logo.
09/15/2026
How a QR code works and how your phone reads it
A walkthrough of a QR code's anatomy and the process a camera follows to decode it in milliseconds.