NO your chat won't be stored anywhere, after the PDF is created your input will be removed, no worries!
Only some general, non-sensitive data, impossible to trace back to the owner, about your chat will be retrieved (check the 5th question to check)
All my code is open-source and can be found in my Github repository, check it out if yoy have any doubts!
If you have some problems with the pdf that the website gave you, feel free to email me at crippa.tommaso@gmail.com with your chat file and analysis attached, I'll send you the right version as soon as possible
No, unfortunately it's currently not possible to get the wanted information from your desktop, only from your phone
For every conversation uploaded onto this website, the following info will be retrieved:
Total number of messages
Number of messages per day
Number of files sent
Most active month, weekday and time of day
Longest active streak
And some more... see the full dataset in repo if you want to know more
Instead won't be stored:
The group chat's name
Any person's name
Partecipants' sensitive information (addresses, phone numbers, ecc...)