UUID/GUID Generator
Generate fast, secure, and unique identifiers right in your browser.
Generated UUID
Your unique identifier appears below.
Generating...
Secure & Private
All generation is performed in your browser. No data is sent to our servers.
Options
Customize the format of your generated UUID.
About UUIDs
A UUID (Universally Unique Identifier), also known as a GUID (Globally Unique Identifier), is a 128-bit number used to identify information in computer systems. This tool can generate different versions of UUIDs. Version 4, the most common, is created from random numbers and is ideal for generating unique IDs for database entries, user accounts, or any other item needing a distinct identifier. Version 1 is based on a timestamp and MAC address, while Versions 3 and 5 are created by hashing a namespace and a name, making them deterministic. You can also customize the output format to fit your specific needs.