Key Generator - Free Online Secure Key Generator

About this tool: Generate secure random keys for software licensing, API access, or cryptographic purposes.
How to use: Select the key type and length, then click 'Generate Key' to get a new random key. Copy and use as needed.
Note: Generate various types of keys, codes, and identifiers for different purposes. All generated keys are created locally in your browser.
Random Keys
UUID/GUID
Hash Codes
Product Codes
License Keys

Generated key will appear here

Key Types Explained
Random Keys:
  • Customizable length and character sets
  • Perfect for passwords, API keys, and tokens
  • High entropy for security applications
UUID/GUID:
  • Universally unique identifiers
  • Used in databases, APIs, and distributed systems
  • Extremely low collision probability
Hash Codes:
  • Cryptographic hash functions
  • Used for data integrity and verification
  • One-way functions (cannot be reversed)
Product Codes:
  • Standardized product identifiers
  • Used in retail and inventory systems
  • Include check digits for validation
Security Notes
Important:
  • Generated keys are created locally in your browser
  • For production use, consider using cryptographically secure random generators
  • Store generated keys securely and never share them publicly
  • Use appropriate key lengths for your security requirements