Encryption / Decryption Tool
Encrypt and decrypt text using AES-256-GCM. Everything runs in your browser — no data leaves your machine.
About This Encryption Tool
This tool uses the Web Crypto API to perform AES-256-GCM encryption entirely in your browser. No data is ever sent to a server.
How It Works
- Your password is derived into a 256-bit key using PBKDF2 with 100,000 iterations and a random salt
- Text is encrypted using AES-GCM (Galois/Counter Mode) — authenticated encryption that ensures both confidentiality and integrity
- The output includes the salt + IV + ciphertext, all Base64-encoded for easy sharing