How to add barcodes to Google Sheets
Add dynamic barcodes via the ActiveBarcode REST API into Google Sheets tables.
It's pure and simple. No Add-On and no script is required with this straight forward approach. Just use the url from the REST API directly in the IMAGE function and that's it. If the content of a cell changes, the barcode changes automatically, too.
=IMAGE(CONCAT("https://api.activebarcode.net/v1/png?code=CODE128&access=YOUR-KEY-HERE&text=",ENCODEURL(A1)))
This screenshot shows the resulting barcode in the Google Sheet that encodes the content of cell A1.

It's pure and simple. No Add-On and no script is required with this straight forward approach. Just use the url from the REST API directly in the IMAGE function and that's it. If the content of a cell changes, the barcode changes automatically, too.
=IMAGE(CONCAT("https://api.activebarcode.net/v1/png?code=CODE128&access=YOUR-KEY-HERE&text=",ENCODEURL(A1)))
This screenshot shows the resulting barcode in the Google Sheet that encodes the content of cell A1.
