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Doan Caesar Cipher & Text Encryptor

Encrypt and decrypt text with Caesar cipher, ROT13, Atbash, and Vigenère cipher. Classic substitution ciphers, all in your browser.

Runs in your browserNo sign-up, no pop-upsEz da saioa hasi beharBetiko libre

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

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

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1
Sartu
Sartu zure testua edo datuak.
2
Prozesua
Berehala prozesatu da zure arakatzailean. Ez zerbitzaririk, ez itxaroterik.
3
Deskargatu
Gorde zure emaitza. Ez da ezer gordetzen.

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Completely free — no hidden costs, ever
No account, email, or login required
Runs entirely in your browser — no uploads
Works on any device — phone, tablet, desktop
Open and ad-supported, with no tracking
Loads fast, with no installation needed

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