Cabinet Noir>Practice / ROT13

Not sure which cipher? Identify it
A fixed shift of 13 — its own inverse: applying it twice restores the text. Obfuscation, not encryption.
Typesubstitution cipher
Breaking ittrivial to break
Era1980s
NamePopularised on Usenet newsgroups to hide spoilers and punchlines.
Modesencrypt · decrypt

Practice

ROT13
Learning content is coming soon.

The cake is a lie

Easy
GURPNXRVFNYVR
Open in the tool·

The punchline

Medium
GURNEVFGBPENGF
Open in the tool·

Two roads

Hard
GJBEBNQFQVIRETRQVANLRYYBJJBBQ
Open in the tool·
Did you like it?Buy me a coffee
About Cabinet NoirSuggest a featureReport a bug

Created by Denys Grybov in 2021

v.0.4.0 // released on 18.10.2026