DataGeneratorHub

GUID Generator

Generate random GUID values in standard GUID/UUID v4 format for development, databases, APIs, testing, and sample data.

Generated GUIDs

Results will appear here after you generate them.

What is a GUID?

A GUID is a globally unique identifier used by applications, databases, APIs, and operating systems to identify values without a shared sequence. GUIDs are typically displayed in the same standard format as UUIDs.

GUID vs UUID

GUID and UUID are often used interchangeably. UUID is the standards-oriented term, while GUID is common in Microsoft and Windows-oriented development. This generator outputs standard GUID/UUID v4 format.

What can you use GUIDs for?

Database IDs
Create GUID-shaped values for records and fixtures.
API examples
Add realistic identifiers to requests and responses.
Testing
Generate sample IDs for unit tests, demos, and QA data.
Development
Create identifiers for local workflows and documentation.

GUID examples

Generated GUIDs use the standard 8-4-4-4-12 hexadecimal layout. Use them when you need identifier-style values for examples, fixtures, tests, and sample records.

Is this GUID generator secure?

GUIDs are generated client-side using the same v4 generation approach as UUIDs. The tool uses browser cryptographic APIs where available and does not generate random output during server rendering.

How to use

  1. 1
    Choose quantity
    Select how many GUIDs to generate.
  2. 2
    Generate GUIDs
    Click Generate GUID for fresh v4-format values.
  3. 3
    Review results
    GUIDs appear in a clean list that adapts to screen size.
  4. 4
    Copy output
    Copy all current GUIDs with one button.

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Frequently Asked Questions

What is a GUID?
A GUID is a globally unique identifier used to identify records, objects, components, and resources across software systems.
Is a GUID the same as a UUID?
In common development use, GUID and UUID usually refer to the same 128-bit identifier format. GUID is the term often used in Microsoft ecosystems.
Are GUIDs unique?
GUIDs are designed to be practically unique. Random GUIDs in v4 format have an extremely low collision probability.
Can I use these GUIDs in databases?
Yes. GUIDs are commonly used as database keys, API identifiers, event IDs, and development sample values.
Is this GUID generator free?
Yes. This GUID generator is free to use online.

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