Hello! This is a simple online tool to help you create fancy fonts for your bio. It's useful for creating Instagram bios that look more "stylish" or personalized, or both. You just need to type or paste some text into the first box, and then the generated text will appear in the second box. Don't forget to scroll down! There are dozens of fonts to choose from.
The characters that you're generating aren't actually "fonts" per se. They're just Unicode characters that look a lot like the normal characters that are on your keyboard. There are lots of characters that aren't on your keyboard, and so most people don't know about them. This generator just lets you convert text into those other characters. But people just call them "fonts" because they look a lot like different fonts.
Note that some social media platforms don't allow certain types of characters in your bio. But most of these fonts should work in your Twitter bio, and in your Instagram bio.