This message encoder is actually a percent-encoded HTML file, therefore, you can easily paste it into a New Tab to use immediately. For example, typing in "Hello World" with the "Currencies" font makes it become "Ω€LLΦ ₩Φ₹L₫". A person can read it, but the Scratch Filter can't.
To find more projects like this, go to my Github account at "https://github.com/Coder-840"