Random String Generator
安全Generate cryptographically secure random strings for API keys, tokens, and test data.
Click generate...如何使用 Random String Generator
Set your desired string length using the slider, then toggle the character types you want to include - uppercase letters, lowercase letters, numbers, and special symbols. The generator creates cryptographically secure random strings instantly using the Web Crypto API. Click **Copy** to copy to your clipboard. Use the custom character pool option for specialized formats like hex or alphanumeric only. Perfect for generating API keys, tokens, session IDs, and test data.
Set length and character options
Use the length slider to choose how many characters you need (4-128), then toggle which character types to include.
Optional: Custom character pool
For specialized formats, enter your own character set in the Custom Character Pool field, or use presets like API Key (32), Token (64), or UUID-style (36).
Generate and copy
Click the generate button to create your random string. Click Copy to copy it instantly.