Skip to content
Convertto

ROT13 & ROT-N Cipher

Shift letters by any amount — ROT13, ROT47 and every rotation in between, with a full table.

ROT-N shifts every letter forward by a fixed number of places, wrapping around at the end of the alphabet. ROT13 is the best-known variant because shifting 13 places twice returns the original text. ROT47 does the same across all printable ASCII, so it also transforms digits and punctuation.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Is ROT13 secure?

Not remotely. There is no key — anyone who recognises the format can reverse it instantly. It exists to hide spoilers and punchlines from casual reading, not to protect anything.

How to use the rot13 & rot-n cipher

  1. 1Enter or paste your text.
  2. 2Set the shift.
  3. 3Choose the alphabet.
  4. 4The result appears immediately — copy or download it.

Embed this tool

Put the working rot13 & rot-n cipher on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

Share this tool

Related tools

Caesar Cipher EncoderEncrypt and decrypt text with a Caesar shift cipher, including ROT13.Morse Code TranslatorTranslate text to Morse code and decode Morse back to plain text, letters and numbers included.File to Base64 ConverterEncode any file — image, PDF, video, font, archive — as Base64, a data URI, hex or a byte array.Letter Frequency AnalyserCount letter and character frequencies — useful for cryptograms and puzzle solving.Multi-Format EncoderEncode text into Base64, hex, binary, URL, HTML entities, ROT13 and more, all at once.PDF to Base64 ConverterEncode a PDF as a Base64 string or a data URI, ready to embed in code.

Last updated

More encoders & decoders