This online service encrypt or decrypt text with a ROT13 cipher.
ROT13 (or ROT-13) is a simple encryption cipher.
It is a variant of the Caesar cipher.
It shifts each letter (A-Z) 13 places forward along the alphabet, so that:
Welcome to Mobilefish.com
becomes
Jrypbzr gb Zbovyrsvfu.pbz
Besides ROT13 this tool allows you to shift each letter 1 (ROT1) to 25 (ROT25) places along the alphabet.
ROT5, ROT18 and ROT47 are special variants.
- ROT13 - Transforms only letters.
Each letter is shifted 13 places:
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
becomes:
nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM
- ROT1-ROT4, ROT6-ROT17 and ROT19-ROT25 - Transforms only letters.
Each letter is shifted N places:
For example ROT1 (N=1):
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
becomes:
bcdefghijklmnopqrstuvwxyzaBCDEFGHIJKLMNOPQRSTUVWXYZA
- ROT5 - Transforms only numbers.
Each number is shifted 5 places:
0123456789
becomes:
5678901234
- ROT18 - Transforms only letters and numbers.
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
becomes:
nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM5678901234
- ROT47 - Transforms ASCII characters 33-126.
Each character is shifted 47 places:
!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`
abcdefghijklmnopqrstuvwxyz{|}~
becomes:
PQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%&'()*+,-./01
23456789:;<=>?@ABCDEFGHIJKLMNO
Input rot13 (rot-n) encoder decoder:
|
|
