lock_open

AES Decrypt

Decrypt AES encrypted data using a passphrase. Reverse the encryption process to recover original data.

Decryption

AES-GCM Authenticated Decryption

Use the same passphrase that was used for encryption

locktrending_flatlock_open

Enter passphrase and encrypted data, then click Decrypt

Decryption Requirements

radio_button_uncheckedCorrect passphrase
radio_button_uncheckedValid Base64 ciphertext
radio_button_uncheckedMinimum data length (salt + IV + data)
info
Wrong passphrase?

Decryption will fail with an authentication error if the passphrase is incorrect

About AES Decryption

This tool decrypts data that was encrypted using AES-256-GCM. The decryption process extracts the salt and IV from the ciphertext, derives the encryption key using PBKDF2, and verifies the authentication tag before revealing the plaintext.

  • Compatible with data encrypted by the AES Encrypt tool
  • GCM authentication tag ensures data integrity and authenticity
  • Decryption fails immediately if data has been tampered with
  • All processing happens locally in your browser
  • No data is transmitted or stored on any server