API Key Generator
Generate cryptographically secure API keys and secret tokens. 32-character alphanumeric strings suitable for REST APIs, webhooks, and service-to-service authentication.
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Options
Character Types
Use Cases
REST API authentication keys
Webhook signing secrets
Service-to-service authentication tokens
Environment variable secrets
Security Tips
Never expose API keys in client-side code, URLs, or public repositories.
Store API keys in environment variables or a secrets management system.
Rotate API keys regularly and immediately if a key may have been compromised.
Use different API keys for development, staging, and production environments.
FAQ
Why are API keys alphanumeric?
API keys avoid special characters because they are often used in URLs, HTTP headers, and configuration files where special characters could cause encoding issues or syntax errors.
How long should an API key be?
32 characters is a common standard (used by Stripe, AWS, and many others). This provides about 190 bits of entropy with alphanumeric characters, which is more than sufficient.
Is this suitable for production use?
The randomness quality is excellent (Web Crypto API). However, for production API keys, you should also implement key hashing, rate limiting, and key rotation in your backend.
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