API Key Generator
Generate cryptographically random API keys and tokens.
About API Key Security
All keys are generated using crypto.getRandomValues() (CSPRNG), which provides cryptographically secure randomness. Keys never leave your browser. Hex is the most common API key format (32 hex bytes = 256 bits of entropy). Base64URL is URL-safe and compact. UUID v4 uses the native crypto.randomUUID() and is universally supported.
Private & free — this tool runs entirely in your browser.
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