AES Key Generator

Generate cryptographically secure, random Base64-encoded AES-256 keys instantly. Everything runs in your browser - nothing is sent to any server.

Generated Key

About This Tool

Generates a 256-bit (32-byte) cryptographically random key
Output is Base64-encoded (44 characters)
Uses the Web Crypto API built into your browser
Nothing leaves your browser - no server requests, no logging, no tracking