API Key Generator
Select character types to generate keys.
256 bits → 43 chars
Strong
Character sets
Uppercase (A-Z)
Lowercase (a-z)
Numbers (0-9)
Symbols
Secure API Key Generator
Generate cryptographically secure API keys directly in your browser using the Web Crypto API. No keys are stored or sent to any server.
Choosing key strength
- 128 bits: Suitable for less sensitive services.
- 256 bits: Recommended for most API integrations.
- 512+ bits: Use for security-critical systems.