Random String Generator

Generate random strings with various character types


1. What is a Random String?

A random string is a sequence of characters generated using cryptographic random number generation. These strings are useful for creating secure tokens, API keys, session IDs, and other security-sensitive values.

2. How does it work?

Character Types

  • Alphanumeric: A-Z, a-z, 0-9 (62 characters)
  • Hex: 0-9, a-f (16 characters)
  • Numeric: 0-9 (10 characters)
  • Custom: Choose your own character set

Security

This tool uses the Web Crypto API's cryptographically strong random number generator (crypto.getRandomValues), making it suitable for generating secure tokens and keys.

3. Examples

Alphanumeric (32 chars)

Kx9mP2nQ8rT4vY6zB3cD5fG7hJ1k

Hex (64 chars)

a1b2c3d4e5f67890abcdef1234567890a1b2c3d4e5f67890abcdef1234567890

API Key (40 chars)

sk_test_Kx9mP2nQ8rT4vY6zB3cD5fG7hJ1k4L

References