Practical field notes

Make QR codes that work.

Short, plain-language guides for reliable codes on screens, signs, packaging, and printed handouts.

Add a logo without breaking your QR code

Choose the right logo size, contrast, and error correction—and verify the exact result.

Share a network name and password without typing, while keeping the code static and private.

Package a name, phone, email, organization, and website into a standards-friendly vCard.