What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. It's formatted as 32 hexadecimal characters displayed in five groups separated by hyphens (e.g., 550e8400-e29b-41d4-a716-446655440000). UUIDs are designed to be unique across space and time without requiring a central registration authority, making them ideal for distributed systems.

Tool description

The UUID Validator checks if a given string is a valid UUID format and extracts detailed information about it. The tool verifies the UUID structure according to RFC 4122 standards and parses the version number (1-5) and variant type, helping developers ensure their identifiers are correctly formatted.

Features

  • Validates UUID format according to RFC 4122 standards
  • Extracts UUID version information (versions 1-5)
  • Identifies UUID variant (NCS, RFC 4122, Microsoft, Reserved)
  • Supports all standard UUID formats with or without hyphens
  • Real-time validation feedback
  • Detailed component parsing

Use Cases

  • Validating database primary keys before insertion
  • Verifying API request/response identifiers
  • Debugging distributed system unique identifiers
  • Checking UUID generation in testing environments
  • Validating user input for UUID fields