Convert text to binary and the other way for any string input.
Convert text to ascii and the other way for any string input.
Convert text to decimal and the other way for any string input.
Convert text to octal and the other way for any string input.
Extract email addresses from any kind of text content.
Use the Google translator API to generate text to speech audio.
Convert forum type bbcode snippets to raw HTML code.
Decode Base64 input to an image.
Ping a website, server or port..