UUID Generator

Generate UUIDs (Universally Unique Identifiers) instantly. Create UUID v4, v1, and custom UUIDs for databases, APIs, and unique identifiers.

Tips for best results
  • UUID v4 is recommended for most use cases (random, secure).
  • UUID v1 includes timestamp and MAC address information.
  • Use UUIDs for database primary keys, API identifiers, and unique references.

What is a UUID?

UUID (Universally Unique Identifier) is a 128-bit identifier that is guaranteed to be unique across time and space. UUIDs are commonly used in databases, APIs, distributed systems, and anywhere you need a unique identifier without a central authority. UUID v4 uses random numbers, while UUID v1 uses timestamp and MAC address.

Key Features

  • Multiple Versions: Generate UUID v4 (random) or v1 (time-based)
  • Bulk Generation: Generate up to 100 UUIDs at once
  • Format Options: Standard format, no hyphens, or uppercase
  • Export Options: Copy to clipboard or download as TXT/JSON
  • Privacy First: All generation happens in your browser—no server requests

Use Cases

  • Database IDs: Use as primary keys in databases
  • API Development: Generate unique identifiers for API resources
  • Distributed Systems: Create unique IDs across multiple servers
  • File Naming: Generate unique file names
  • Session IDs: Create unique session identifiers

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