JsonifyTools

    UUID Generator

    Generate unique identifiers using multiple UUID versions. Customize formatting with uppercase letters, hyphens, and braces for your development needs.

    Options

    Random UUID - Most commonly used

    5
    150
    Uppercase

    ABC-DEF instead of abc-def

    Include Hyphens

    xxxxxxxx-xxxx-xxxx format

    Include Braces

    {uuid} format

    Generated UUIDs

    0 UUIDs generated0 chars total

    What is a UUID?

    A UUID (Universally Unique Identifier) is a 128-bit value used to uniquely identify objects or records across systems. UUIDs are commonly used in software development, databases, APIs, and distributed systems where uniqueness is critical.

    UUID Versions

    • UUID v1: Timestamp + MAC address based
    • UUID v3: Name-based using MD5 hash
    • UUID v4: Randomly generated
    • UUID v5: Name-based using SHA-1 hash

    Examples

    # UUID v4 example
550e8400-e29b-41d4-a716-446655440000

# UUID v1 example
6ba7b810-9dad-11d1-80b4-00c04fd430c8

# Uppercase and hyphens removed
550E8400E29B41D4A716446655440000

    Key Features

    • Generate multiple UUIDs instantly
    • Choose UUID version (v1, v3, v4, v5)
    • Custom formatting options: uppercase, hyphens, braces
    • Copy, clear, or regenerate UUIDs with one click
    • Perfect for software development, database IDs, and API testing