AES Encryption

An AES Encryption Tool is an air-gapped cryptographic utility that performs hardware-accelerated symmetric encryption and decryption in compliance with NIST FIPS 197 standards. It supports the Advanced Encryption Standard (AES) with 128-bit, 192-bit, and 256-bit key lengths across Galois/Counter Mode (AES-GCM for authenticated encryption with associated data) and Cipher Block Chaining (AES-CBC with PKCS#7 padding). Security engineers, developers, and privacy-conscious users utilize this tool to encrypt sensitive text strings, API secrets, and configuration files using passwords derived via PBKDF2 (Password-Based Key Derivation Function 2) with SHA-256 and randomized initialization vectors (IVs). Powered exclusively by the browser's native Web Cryptography API (window.crypto.subtle), all mathematical transformations, key derivations, and cipher processing execute directly in local device RAM. Your unencrypted plaintexts, secret passphrases, and cryptographic keys are never transmitted over any network or stored on remote servers.