GUID Generator

Generate GUID style identifiers with `crypto.randomUUID()` when available, inspect the UUID version and variant bits, and create multiple values at once.

Generate between 1 and 20 GUID values per run.

Result
d4e56a37-2aa7-4e07-92c9-46b8e889bdab

Generated with crypto.randomUUID().

Version
4
Variant Nibble
9
Count
4
GUID 1
d4e56a37-2aa7-4e07-92c9-46b8e889bdab
GUID 2
0bcac849-2281-4cf3-9c14-761cf0158365
GUID 3
a64a541a-fdec-4263-8430-c4854a88ee4e
GUID 4
9fa80b71-e9be-4f74-8f29-1dab3818374e

How The Generator Works

The primary path uses `crypto.randomUUID()` to create version 4 identifier values directly in the browser.

If that API is unavailable, the tool falls back to random bytes, sets the UUID version and variant bits, and formats the result in canonical GUID style.

Quick Examples

A single GUID is useful when you need one fresh identifier for testing or content mapping.
Batch GUID generation is useful for fixture data, CSV rows, seeded datasets, and mock records.
Canonical GUID formatting uses five hexadecimal groups in an 8-4-4-4-12 pattern.
Version 4 GUIDs are random-based rather than timestamp-based identifiers.

Frequently Asked Questions

Is a GUID different from a UUID here?

For this tool, GUID is the familiar name for the same canonical UUID v4 style identifier format.

Why show the version and variant bits?

They help confirm the identifier matches the expected version 4 UUID structure.

Can I generate more than one at a time?

Yes. The tool can create a batch of values in one run so it is useful for mock data.

What can I use these IDs for?

They are useful for records, fixtures, API examples, content keys, and distributed identifier workflows.

Useful Notes

GUID and UUID naming often varies by platform, but the browser API returns the same familiar 36-character identifier format.

Secure browser randomness is preferable whenever it is available.

The tool keeps the interface consistent with the other random generator utilities already in this package.

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