Developer tools

Secret Key Generator

API keys, tokens, and secrets — generated with the Web Crypto API, right here in your browser.

Format

Entropy: 32 bytes (256 bits)

Batch size: 1

🔒 Runs 100% in your browser. Keys are generated with the Web Crypto API (crypto.getRandomValues / crypto.randomUUID) — never Math.random — and nothing on this page ever leaves your device. Not even to us.

How strong is this? 256 bits of entropy means an attacker would need on average 2²⁵⁵ guesses. At a trillion guesses per second, that's longer than the age of the universe. Use at least 32 bytes (256 bits) for production secrets.