Special characters are symbols that are not part of the standard alphabet or numeric system. They can be used for various purposes, such as adding accents to letters, representing mathematical operations, creating emoticons, and more. Some examples of special characters are: ☛, ♪, and ღ.

Text Diff is a useful online tool that allows you to compare the differences between two text files or fragments. You can use it to find and merge changes, detect errors, or simply check for consistency.

String Obfuscator is a useful free online tool that could obfuscate a string (like a secret, an IBAN, or a token) to make it shareable and identifiable without revealing its content.

NATO Alphabet Converter could transform text or English alphabet into NATO phonetic alphabet for oral transmission.