🔐
🧩

Create Caesar Cipher Puzzles

Encode hidden messages in Caesar cipher for scavenger hunts, escape rooms, and puzzle challenges.

Ei kirjautumista tarvita

Shifts each letter by 13. Self-inverse — applying it twice returns the original.

Input
Output
Gur dhvpx oebja sbk whzcf bire gur ynml qbt.

Puzzles tips

🧩

Choose a shift of 3 (the original Caesar shift) for classic puzzle design. Players who know history will try 3 first.

💡

For harder puzzles, use a shift that doesn't have an obvious mnemonic. Shift 7 or 17 are harder to guess than 1, 3, or 13.

🔍

Frequency analysis: in English, E is the most common letter. If you see lots of H in the ciphertext, the shift might be 3 (E+3=H).

🎯

For escape rooms, hide the shift number in a visual clue. A clock showing 7 o'clock is the key to a shift-7 cipher.

Miten se toimii

1
Syötä
Enter your data into the tool above. Everything stays local to your browser.
2
Käsittele
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Lataa
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Miksi käyttää meidän?

Täysin ilmainen — ei piilokustannuksia, koskaan
Ei tiliä, sähköpostia tai kirjautumista tarvita
Tiedostot eivät koskaan poistu laitteeltasi
Ei tiedostokokorajoituksia lainkaan
Ei vesileimoja missään tulosteessa

Also check out…

Usein kysytyt kysymykset