QRコード

• Reading: キューアールコード
• Romaji: kyuuaaru koodo
• Pronunciation: /kju.a.ru.ko.o.do/

Meaning

QR code — the square barcode used for payments, links, menus, and more.

QRコード (pronounced キューアールコード) is a ubiquitous part of Japanese daily life. Originally developed by the Japanese company Denso Wave in 1994, QR codes are used extensively for cashless payment (PayPay, LINE Pay), restaurant menus, event check-ins, business cards, and marketing campaigns. While technically a trademarked product name, it is used generically in everyday speech. The phrase 「QR読んで」 (scan the QR) is heard constantly in shops and restaurants.

Examples

1. レジでQRコード出したら一瞬で払えた。 I pulled up the QR code at the register and paid in an instant.
2. このお店、メニューQRコードしかなくて不便だった。 This restaurant only has QR code menus, which was kind of inconvenient.
3. QRコードを読み込んだらクーポンがもらえるよ。 If you scan the QR code, you can get a coupon.

Usage Guide

Context: shopping, restaurants, events, everyday conversation

Tone: practical, neutral

Do Say

• QRコード読んでもらえますか？ (Could you scan the QR code for me?)
• PayPayのQRコード出してください。 (Please show your PayPay QR code.)

Don't Say

• 「QR」だけでは通じないことがある — 「QRコード」と言ったほうが確実 (Saying just 'QR' may not always be understood — say the full QRコード to be safe)

Common Mistakes

• Reading QR as 'kyu-aru' instead of the standard 'kyuu-aaru' (キューアール)
• Assuming all QR codes work the same way — some require a specific app to scan

Origin & History

QR code was invented by Denso Wave (a Toyota subsidiary) in 1994 in Japan. The term 'QR' stands for Quick Response. Japan was among the first countries to adopt QR codes widely for consumer use, and they became mainstream in the 2000s, long before their global rise in the 2020s.

Cultural Context

Era: 1994 invention, mainstream 2000s onwards

Generation: All ages

Social background: Universal

Regional notes: Used across all of Japan. Japan was a pioneer in QR code adoption and cashless QR payment is now standard in most shops and restaurants.