How to display some HTML by typing it into the address bar?

May 1, 2023 by Tarik

You can use data:text/html, an example:

data:text/html,<h1>Hello World</h1><script>alert('JavaScript works too!');</script>

Other examples of data URLs: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs