QR Code Generator add-on lets you easily create QR codes from values in Google Spreadsheets.

You can generate multiple QR codes by selecting a range of values in a spreadsheet or using a custom template.

QR codes are saved either in a Google Document or as PNG files in Google Drive.

2021 HIGHLIGHTS: Users generated 10 766 814 QR codes, roughly 1 200 QR codes every hour. The busiest day was May 28 when users generated 511 394 QR codes in a single day, 6 QR codes every second!

NEW: Use templates and take QR code generation to the next level. With templates, you can create vouchers, membership cards, ID cards, or event tickets. Go to Settings -> Templates Gallery -> Getting Started to create your first template.

NEW: You can merge images in templates. Use this feature to create ID cards, membership cards with photos. Take advantage of Google forms where users can upload images directly to Google Drive and you can automate the card creation process.

Looking for other ways how you can create QR codes? Try AnyMerge add-ons. 

AnyMerge Mail - merge QR codes directly into Gmail messages
https://gsuite.google.com/marketplace/app/anymerge_mail/176776676167

AnyMerge Docs - merge QR codes directly into Google Docs
https://gsuite.google.com/marketplace/app/anymerge_docs/161935362478