API Key Generator
Generate secure API keys and tokens online for free. Customize format and length.
關於此工具
Generate cryptographically secure API keys in various formats — hex, base64, alphanumeric. Perfect for seeding application secrets and API credentials.
使用方法
Choose Format
Select key format and length.
Generate
Click Generate to create a secure API key.
Copy
Copy the key to use in your application.
使用場景
App Secrets
Generate API keys for application authentication and service integrations.
常見問題
Are keys cryptographically secure?
Yes. Keys are generated using crypto.getRandomValues() — the same API browsers use for TLS.