Developer Tools

ROT13 & Caesar Cipher Encoder / Decoder

Encrypt and decrypt text with ROT13, Caesar shifts, and ROT47 algorithms in real-time.

Input Text

Cipher Output

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Frequently Asked Questions

Is ROT13 symmetric?

Yes, running ROT13 twice on the same text returns the original string.

Which shift amounts are supported?

Supports standard ROT13, classic Caesar shifts (+1, +3, +5), ROT18, and ROT47.

Is this secure encryption?

No, ROT13 is an obfuscation cipher for spoilers and puzzles, not cryptographic security.

Embed this Tool on Your Site

Copy and paste this snippet into your blog, documentation, or tech site to embed this interactive utility: