API Key Generator
Configuration
Add a prefix to identify the key type or environment
Generated API Key
Click "Generate" to create a secure API key
Batch Generation
About API Key Generator
Professional API key generator with cryptographically secure random generation, multiple format support, and customizable length and complexity options. All processing happens locally in your browser for privacy.
API keys are essential for secure authentication and authorization in modern applications. This tool provides enterprise-grade key generation for developers, system administrators, and security professionals.
- Secure Generation: Uses Web Crypto API for cryptographically secure randomness
- Multiple Formats: Supports HEX, Base64, Base64URL, alphanumeric, and custom character sets
- Customizable Length: Generate keys from 16 to 128 characters with configurable complexity
- Batch Generation: Create multiple API keys simultaneously for bulk operations
- Prefix Support: Add custom prefixes for key identification and organization
Security Notice
- Cryptographically Secure - Uses Web Crypto API's crypto.getRandomValues() for true randomness
- Client-Side Only - All generation happens in your browser - keys never leave your device
- High Entropy - Generate keys with sufficient entropy for production use
- Format Flexibility - Multiple encoding formats to match your API requirements