Text Ciphers (ROT13, Caesar, Morse, Atbash)
Classic toy ciphers — ROT13, Caesar shift, Morse code, Atbash. Educational use only; none are cryptographically secure.
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How it works
- 1Pick cipherROT13, Caesar, Atbash, Morse.
- 2TypeEncoded/decoded depending on cipher (most are symmetric).
Frequently asked
Is this secure?
No. Caesar/ROT13/Atbash are 2000-year-old toys — they have at most 25 possible keys and a child can break them. Don't use them for anything sensitive.
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Tool designed and editorially reviewed by Felix Brübach. Text drafted with AI assistance and reviewed for legal and factual accuracy before publication. Not legal advice — for complex cases, consult a lawyer.
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