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Free 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-upsNo login requiredFree forever
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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How It Works
1
Enter
Enter your text or data.
2
Process
Processed instantly in your browser. No server, no waiting.
3
Download
Save your result. Nothing is stored.
Why use ours?
✓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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