Text Encryption and Decryption

Encrypt and decrypt text using AES-256 encryption entirely in your browser. No data sent to servers.

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1. Choose the encrypt or decrypt mode using the toggle switch. 2. Enter the plaintext message you want to encrypt (or ciphertext to decrypt). 3. Type a strong secret passphrase that will be used as the encryption key. 4. Click the encrypt or decrypt button to process the text with AES-256 encryption. 5. Copy the encrypted ciphertext or decrypted plaintext from the output area. 6. Share the ciphertext and passphrase separately through secure channels.

About This Tool

Protect sensitive text with military-grade AES-256 encryption, the same standard used by governments and financial institutions worldwide. Enter your text and a secret password, and the tool will encrypt it into an unreadable ciphertext that can only be decrypted with the same password.

AES-256 (Advanced Encryption Standard with 256-bit keys) is a symmetric encryption algorithm, meaning the same password is used for both encryption and decryption. The tool uses PBKDF2 key derivation with a random salt to convert your password into a secure encryption key, and a random initialization vector (IV) ensures that encrypting the same text twice produces different ciphertext.

Everything runs entirely in your browser using the Web Crypto API - your text and password are never transmitted or stored anywhere. This makes it ideal for securely sharing sensitive information like account details, private notes, or confidential messages. Simply encrypt the text, share the ciphertext through any channel, and communicate the password separately.

Frequently Asked Questions

AES-256 is a symmetric encryption algorithm that uses a 256-bit key to encrypt and decrypt data. It is considered one of the most secure encryption standards available and is used by governments, banks, and security-critical applications worldwide.
No. All encryption and decryption happens entirely in your browser using the Web Crypto API. Your text and password are never sent to any server, ensuring complete privacy.
There is no way to recover encrypted text without the correct password. AES-256 encryption is designed so that the data is unrecoverable without the key. Always store your passwords securely.
With a strong password, AES-256 encrypted text is considered uncrackable with current technology. A brute-force attack on a 256-bit key would take billions of years even with the most powerful supercomputers.
Never send the password through the same channel as the encrypted text. If you share the ciphertext via email, communicate the password via a phone call, text message, or in person to maintain security.

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