Mã Hóa & Giải Mã Văn Bản

Mã hóa và giải mã văn bản với AES-256, ROT13, và Caesar cipher. Bảo mật tuyệt đối, xử lý hoàn toàn trên trình duyệt của bạn.

Select Encryption Method

Secret Key

⚠️ Save your key! You'll need it to decrypt later.

Input Text

Output

What is Text Encryption?

Text encryption is the process of converting plain text into unreadable ciphertext using a secret key or algorithm. Our tool supports AES-256 (military-grade encryption), ROT13, Caesar cipher, and Atbash cipher for various security needs.

Why Use Our Text Encryption Tool?

Free & Unlimited: Encrypt unlimited text without any restrictions
AES-256 Encryption: Military-grade encryption for maximum security
Multiple Ciphers: Choose from AES, ROT13, Caesar, and Atbash ciphers
Key Generator: Generate strong random keys with one click
100% Secure: All encryption happens in your browser, keys never leave your device

Available Cipher Types

AES-256: Advanced Encryption Standard with 256-bit keys. Industry standard for secure data protection. Requires a secret key.
ROT13: Simple letter substitution cipher that shifts each letter by 13 positions. Symmetric and reversible.
Caesar Cipher: Classic cipher that shifts letters by a specified number of positions. Adjustable shift value.
Atbash Cipher: Ancient Hebrew cipher that reverses the alphabet (A↔Z, B↔Y, etc.). Symmetric.

Frequently Asked Questions

What's the difference between encryption and encoding?

Encryption requires a key to decrypt and is meant for security. Encoding (like Base64) is reversible without a key and is for data formatting, not security.