ffee All tools
EN 中文 FR DE

Text Encrypt and Decrypt

Encrypt and decrypt text with a passphrase using AES-GCM — entirely in your browser.

Encrypt or decrypt

AES-GCM with PBKDF2 key derivation. Keep your passphrase safe — without it the text cannot be recovered.

How to use the Text Encrypt and Decrypt

  1. Choose encrypt or decrypt.
  2. Enter a passphrase, then paste your text or encrypted payload.
  3. Click Run and copy the result.

Features

Advertisement

More tools

Password Strength Checker HMAC Generator Base32 Encoder Base58 Encoder Base85 Encoder XOR Cipher RSA Encrypt and Decrypt File Encryptor ROT47 Cipher Text to Binary Cipher Salt Generator Nonce Generator

Frequently Asked Questions

Common questions about the free online text encrypt and decrypt.

The tool derives an AES-256 key from your passphrase with PBKDF2 (150000 iterations and a random salt), then encrypts with AES-GCM and a random IV.
No. Everything happens in your browser using the Web Crypto API, so nothing is sent to a server.
Yes, if the other tool supports the same format: the output is a Base64 payload containing a 16 byte salt, a 12 byte IV and the AES-GCM ciphertext.
The text cannot be recovered. There is no back door and no password reset, so store the passphrase safely.
AES-GCM with a long, unique passphrase is strong, but for high value secrets use a dedicated encryption tool or a password manager.
The payload includes the random salt and IV plus the authentication tag, and Base64 encoding adds about a third more characters.
Yes. The tool is fully responsive and works in any modern browser on desktop, tablet and phone.
Yes, it is completely free with no account required.

Last updated: October 10, 2026