About AES Encrypt & Decrypt
The AES Encrypt & Decrypt tool lets you secure text using AES-256-CBC encryption with a password-derived key (PBKDF2). Encrypt any text, share the encrypted ciphertext, and decrypt it later with the same password. Everything happens locally in your browser using the Web Crypto API—your data and password are never transmitted. Ideal for protecting sensitive messages.
Features
- AES-256-CBC encryption with PBKDF2 key derivation
- Encrypt and decrypt text with a password
- Random salt and IV for each encryption
- Copy encrypted ciphertext or decrypted text with one click
- 100% local processing using Web Crypto API
Frequently Asked Questions
Is my password stored anywhere?
No. The password is used only in your browser to derive the encryption key and is never stored, transmitted, or logged. If you lose the password, the encrypted data cannot be recovered.
Which encryption algorithm is used?
The tool uses AES-256-CBC with a key derived from your password using PBKDF2 with a random salt and a high iteration count, plus a random initialization vector (IV) for each encryption.