# QRCodeFYI

> The QR Code Encyclopedia & Toolkit — 15 QR code types, guides, and tools.

## Markdown Endpoints

Every page supports `.md` suffix for LLM-friendly markdown:
- https://qrcodefyi.com/type/url.md
- https://qrcodefyi.com/guide/qr-code-fundamentals.md
- https://qrcodefyi.com/glossary/error-correction.md

## Content Index

### QR Code Types
- [URL / Website](https://qrcodefyi.com/type/url/.md): URL QR code — encode any web address into a scannable QR code. Specs, encoding details, and best practices for website QR codes.
- [Plain Text](https://qrcodefyi.com/type/text/.md): Plain text QR code — encode any text message into a QR code. Supports numeric, alphanumeric, byte, and kanji encoding modes.
- [WiFi Network](https://qrcodefyi.com/type/wifi/.md): WiFi QR code — share network credentials instantly. Supports WPA, WEP, and open networks with automatic connection on scan.
- [Contact Card (vCard)](https://qrcodefyi.com/type/vcard/.md): vCard QR code — encode a full contact card (name, phone, email, address) that saves directly to the scanner's address book.
- [Email Address](https://qrcodefyi.com/type/email/.md): Email QR code — encode a mailto: link with optional subject and body. Opens the default email client on scan.

### Reference
- [All QR Types](https://qrcodefyi.com/type.md)
- [Versions](https://qrcodefyi.com/version.md)
- [Standards](https://qrcodefyi.com/standard.md)
- [Encoding Modes](https://qrcodefyi.com/encoding.md)
- [Glossary](https://qrcodefyi.com/glossary.md)

### Guides & Tools
- [Guides](https://qrcodefyi.com/guide.md)
- [Use Cases](https://qrcodefyi.com/use-case.md)
- [Recipes](https://qrcodefyi.com/recipe.md)
- [Tools](https://qrcodefyi.com/tools/)
- [Comparisons](https://qrcodefyi.com/compare.md)

- Full reference: https://qrcodefyi.com/llms-full.txt

## Related
- [BarcodeFYI](https://barcodefyi.com/llms.txt) — The Barcode Encyclopedia & Toolkit
- [NFCFYI](https://nfcfyi.com/llms.txt) — The NFC Encyclopedia & Toolkit
- [BLEFYI](https://blefyi.com/llms.txt) — The BLE Encyclopedia & Toolkit
- [RFIDFYI](https://rfidfyi.com/llms.txt) — The RFID Encyclopedia & Toolkit
- [SmartCardFYI](https://smartcardfyi.com/llms.txt) — The Smart Card Encyclopedia & Toolkit