21+ Age Check ID Scanner

21+ Age Check ID Scanner is a lightweight Chrome extension that continuously scans standard 2D barcodes on US IDs and passports to quickly indicate whether the holder is over or under 21. It reports a green thumbs-up for over 21 and a red thumbs-down for under 21, requires no date math, and can process about one ID per second. The app stores no data after each scan and includes a built-in QR code share feature for on-site deployment at events, directing users to the purchase page. Designed for waitstaff, club staff, bouncers, and bartenders, it speeds up age verification while preserving privacy.