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UnicodeWorks.com

Ciphers & Phonetics

Encode, decode and inspect classical letter ciphers and phonetic representations. These tools are for deterministic transformations and learning, not modern cryptography.

Assumptions and limitations

  • Classical ciphers are not secure encryption and should not be used to protect sensitive information.

Tools in this section

7 available tools.

ROT13 TranslatorEncode/decode ROT13 text. Runs locally in your browser; input is not sent to a third party.Caesar Cipher Encoder & DecoderEncode/decode Caesar-shift ciphers with configurable shift. Runs locally in your browser; input is not sent to a third party.Cipher DecoderTry common classical cipher decoding methods. Runs locally in your browser; input is not sent to a third party.Substitution Cipher DecoderDecode monoalphabetic substitution ciphers with frequency aids. Runs locally in your browser; input is not sent to a third party.Vigenère Cipher Encoder & DecoderEncode/decode Vigenère cipher text. Runs locally in your browser; input is not sent to a third party.NATO Phonetic Alphabet TranslatorConvert text/letters to NATO phonetic words and back. Runs locally in your browser; input is not sent to a third party.Leetspeak TranslatorConvert plain text to/from leetspeak. Runs locally in your browser; input is not sent to a third party.