This generator allows you to make special fonts which you can copy and paste (copas) into your social media posts, Instagram bios, Tweets, and so on. Using these fancy fonts may help you stand out from the crowd of other users, and help express certain emotions and sentiments on platforms that don't allow you to format your text. For example, instead of writing "He said what?" you can write "He said 𝙬𝙝𝙖𝙩?"
People also like to copas fonts into their usernames/nicknames (for example, on free fire and other games) so that they stand out more on leaderboards and stuff. You might find that some fonts don't work - that's just because the social media platform (or game, etc.) may have banned certain special characters and letters from being allowed in usernames, bios, captions, etc. So if one of the fonts doesn't work, try using another few before giving up.
If you're curious: These fancy letters are actually not "fonts" in the normal sense. They're actually just special symbols that happen to be in the Unicode standard, and they just so happen to correspond (sometimes very loosely) to the normal Latin alphabet characters.
If you have any suggestions for how to improve this generator, please let me know in the comments section below :)