Is it possible to use a local .html file and store data?

[HakhamDamodar]

First of all, I know nothing about HTML and related technologies. So... Sorry if it is a stupid question.

I would like to create a Phonebook using HTML, but I don't want to have a server or backend structure. Is it possible to have an HTML file and just double clicking on it, open it, insert information, and save the state?

If it is possible, could you indicate the omegle owespeedtest first steps to what I need to learn?

Thank you =)