AES Encrypt Decrypt
Encrypt and decrypt text strings using AES-GCM algorithm with secret passphrases locally.
About AES Encrypt Decrypt
The AES (Advanced Encryption Standard) Encryption & Decryption Studio secures sensitive text, passwords, and JSON payloads with AES-256-GCM and AES-CBC modes using authenticated key derivation (PBKDF2) and 100% in-browser Web Crypto API execution.
How to Use AES Encrypt Decrypt
Step 1
Enter your plaintext message or paste encrypted ciphertext.
Step 2
Provide your secret encryption passphrase.
Step 3
Select AES mode (AES-GCM recommended for integrity protection).
Step 4
Click "Encrypt" or "Decrypt".
Practical Use Cases for AES Encrypt Decrypt
Confidential Payload & Secret Sharing
Encrypt sensitive credentials, client records, and API tokens with a passphrase before sending via unencrypted email or chat channels.
Client-Side Database & LocalStorage Security
Encrypt client-side cache records and indexedDB payloads in web applications before persisting to local storage.
Input & Output Examples
Encrypting Text with AES-256-GCM
Plaintext: "Confidential Project Plan 2026", Passphrase: "secret_passphrase"
Ciphertext: Base64 string containing Salt (16 bytes), IV (12 bytes), Tag (16 bytes), and encrypted payload
Key Features & Performance
- ✓Military-grade AES-256-GCM (Authenticated Encryption) and AES-CBC modes.
- ✓PBKDF2 key derivation with 100,000+ SHA-256 iterations.
- ✓Generates cryptographically random Initialization Vectors (IV) per encryption.
- ✓100% Client-Side Web Crypto API execution guarantees zero server transmission.
- ✓1-Click Copy ciphertext and 1-Click Decrypt.
Key Terminology & Definitions
AES-256-GCM
Galois/Counter Mode of the Advanced Encryption Standard, providing both confidentiality and cryptographic integrity authentication (AEAD).
Initialization Vector (IV)
A random, non-secret binary value required at the start of encryption to ensure that identical plaintexts produce completely different ciphertexts.