UUID Generator
Generate UUIDs (v4).
Input
Output
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit value usually shown as 36 characters with hyphens (e.g. 550e8400-e29b-41d4-a716-446655440000). Version 4 UUIDs are random and widely used for IDs in databases, APIs, and distributed systems.
Why this tool is useful
Many systems require unique IDs that are safe to generate without a central authority. UUIDs fit that need. This tool generates RFC 4122 v4 (random) UUIDs at the click of a button. Copy the result into your code, database seed, or API test. Generation is client-side and instant.
Example usage
Click Generate UUID to get a new v4 UUID such as a1b2c3d4-e5f6-4789-abcd-ef0123456789. Copy it into a seed script, a request body, or a config file. Generate again for another ID; each one is effectively unique.
How to use this tool
Click Generate UUID to create a new v4 UUID. Use the copy button to put it on your clipboard. Clear resets the output. For time-based conversions try Timestamp Converter; for other encoding needs try Base64 or JSON Formatter.