Guide library
QR code and barcode guides
How to scan QR codes and barcodes safely on Android, keep a useful scan history, and create codes that work when printed.
Scanning basics
Camera scans, codes in screenshots and a scan history you can search.
- Scan, save, and create QR codes.
QR Scanner is an Android QR code and barcode scanner for camera scans, image import, saved history, exports, and QR code creation. - Scan a QR Code From a Screenshot or Photo
How to scan a QR code that is on your own phone screen: import a screenshot or photo, share an image to the scanner, and tips for codes on laptops and TVs. - QR Scan History: Find, Favourite and Clean Up Scans
Use QR scan history on Android: search by content, type or format, keep favourites, batch-scan without duplicates, delete private scans.
Safety: links and Wi-Fi
Checking a link before you open it and joining Wi-Fi from a code without surprises.
- Check a QR Code Link Before You Open It
How to check a QR code link before opening it: read the real domain, spot lookalike and shortened URLs, and avoid fake parking, payment and menu QR stickers. - Scan and Create a Wi-Fi QR Code on Android
Scan a Wi-Fi QR code on Android to join without typing the password, make one for guests, and understand what the code reveals.
Creating codes and barcodes
Contact cards, links and events as QR codes, and what product barcodes really contain.
- Create a QR Code for a Contact Card, Link or Event
Create QR codes on Android for a contact card, link, Wi-Fi, event or location — plus the size, contrast and testing rules for printing. - Barcode Types Explained: UPC, EAN, Code 128 and More
UPC and EAN on products, Code 128 on parcels, PDF417 on boarding passes, Aztec on tickets, Data Matrix on medicine — and what a scan tells you.