Generate API keys, tokens, and secrets with cryptographic randomness. Customize format, length, and style. Free forever.
Powered by crypto.getRandomValues() — the same CSPRNG behind TLS and SSH.
Industry-standard patterns used by the world's best APIs.
sk_live_51H...Prefixed keys for live/test environments
sk-proj-abc123...Project-scoped API keys
AKIA1234567890AB20-char alphanumeric access key IDs
ghp_xxxxxxxxxxxxPrefixed personal access tokens
550e8400-e29b-...Standard 128-bit universally unique ID
a1b2c3d4e5f6...Raw hexadecimal for custom implementations
Every key is generated with the highest cryptographic standards.
Uses crypto.getRandomValues() — the same CSPRNG that powers TLS, SSH, and every major security protocol. Not Math.random().
Keys are generated entirely in your browser. Nothing is sent to any server. No logs, no tracking, no storage. View source to verify.
A 32-character hex key has 128 bits of entropy — equivalent to AES-128. A 64-character key matches AES-256 security strength.
Recommended books, tools, and services for building secure applications.
Master the cryptographic primitives behind secure key generation, TLS, and modern authentication.
Get on Amazon →The definitive guide to finding and exploiting security flaws in web applications.
Get on Amazon →The comprehensive reference for JavaScript, including the Web Crypto API used in this generator.
Get on Amazon →