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Caesar / ROT13 Cipher
Encode and decode Caesar, ROT13, ROT47, Atbash and A1Z26 — and crack unknown shifts with a frequency-scored brute-force panel.
Between letters of a word, e.g. 8-5-12-12-15.
Between words. Decoding reads any digits it finds.
This cipher is self-inverse — encoding and decoding are the same operation.
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Brute-force Caesar
All 25 shifts of the input, scored by English letter frequency (χ² — lower is more likely English). Top 3 are highlighted. Click a row to copy its full text.