About This Site

Purpose

This site is a privately operated information resource dedicated to providing accurate, practical information about QR codes. We cover a wide range of topics including how QR codes work, practical applications, security, and history, all explained in accessible language.

We also offer a QR code generator tool. All input data is processed entirely in your browser and is never sent to our servers.

About the Operator

This is an unofficial information site independently operated by きゅーさく (Kyu-saku). We have no direct affiliation with DENSO WAVE (the developer of QR codes). "QR Code" is a registered trademark of DENSO WAVE INCORPORATED.

Editorial Policy

All articles are written with a focus on accuracy and readability. Technical content is based on official specifications and reliable sources, presented in plain language accessible to readers without specialized knowledge.

If you find any errors, please let us know through our contact page.

Advertising and Affiliates

This site participates in the Amazon.co.jp Associates Program, earning from qualifying purchases. When you buy products through links in our articles, we may receive a referral fee. This does not result in any additional cost to you.

Contact

For feedback, suggestions, or error reports, please reach out through our contact page.