Here's a simple script (65 lines) using crypto-js and read modules to AES encrypt a file containing passwords. You can save the outputted encrypted text and upload the file to google drive and then decrypt the file with the script whenever you need.
Whenever I need to add new sensitive data to the file I simply re-encrypt it with the script by passing in the additional info and then I re-upload (I like to keep old files though just in case I mess up the file somehow). I also like to keep a password hint file with my sensitive info files.
Please post any questions!
https://gist.github.com/danielyaa5/516f96e4f15bed7be386c7495fb73e98
