This code was something I quickly put together to archive over 5000 text messages in Google Messages. I have no idea if Google frowns on this or not, but it's basically the same as if a human sat there and archived all the messages by hand.
Tested and working as of Monday, November 4, 2019.
- Sign into https://messages.google.com/web/
- Open Chrome Developers console by going to
View
>Developer
>JavaScript Console
. - Copy and paste the code below into console. It should automatically run.
Don't run any code before you know what it does. Review it and make sure it's safe. I accept no fault if something goes wrong. Google may change their code at anytime and this code may not work. I provide no support.
This is from Nov 4, 2019. I doubt the interface for Google Messages webapp is the same anymore.