Utilities / Text Encryption

Text Encryption & Decryption

Encrypt and decrypt text using various ciphers including Caesar, ROT13, Vigenere, and AES-256.

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Note: Classical ciphers (Caesar, ROT13, Atbash, Vigenere) are not secure for sensitive data. Use AES-256 for actual security needs. All encryption happens locally in your browser.

Select Cipher

Shift (1-25)

ROT13 has no configurable options - it always shifts by 13.

Atbash has no configurable options - it reverses the alphabet (A↔Z, B↔Y, etc.)

Keyword
Password/Key
Input Text
Output

About Caesar Cipher

The Caesar cipher is one of the oldest known encryption techniques. It works by shifting each letter in the plaintext by a fixed number of positions in the alphabet. Named after Julius Caesar, who used it to communicate with his generals. It's easily broken and should only be used for fun or education.

🔒 Privacy First: All encryption and decryption happens locally in your browser. No data is sent to any server.

Understanding Encryption Methods

Classical Ciphers

Modern Encryption

AES-256: Advanced Encryption Standard with 256-bit key length. This is the industry standard for secure encryption, used by governments and organizations worldwide. Unlike classical ciphers, AES is computationally secure and suitable for protecting sensitive information.

Related Utilities

Explore our other free security tools: Hash Generator, Password Generator, Base64 Encoder, and JWT Decoder.