GUID / UUID Generator
Generate random GUIDs (UUIDs v4) in various formats
GUID Settings
Standard (with dashes)
Uppercase
Generated GUIDs
Click the button above to generate GUIDs
How to Use
- Select the desired output format.
- Toggle uppercase or lowercase.
- Set the number of GUIDs to generate.
- Click 'Generate' to create random UUIDs.
- Click any GUID to copy it to clipboard.
About GUIDs
What is a GUID/UUID?
A GUID (Globally Unique Identifier) or UUID (Universally Unique Identifier) is a 128-bit label used for uniquely identifying information. Version 4 UUIDs are generated randomly.
UUID v4 Format
The standard format is xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, where x is a random hexadecimal digit and y is one of 8, 9, A, or B.
Use Cases
GUIDs are widely used as database primary keys, session identifiers, API tokens, distributed system IDs, and file naming in systems that require globally unique identifiers.