Characters Escape & Unescape can escapes special characters in a string so that they do not cause conflicts, and unescapes Characters in a string that have been escaped.
Unicode Characters Escape & Unescape can convert characters to their unicode-escaped notations, and convert unicode-escaped character notation back into raw characters.
Hex Encode & Decode is a encode tool for free that can convert the text to hexadecimal bytes separated by the specified delimiter and also can convert hexadecimal byte string back into its raw value.