Free UUID Generator (v1 / v4)

Generate time-based (v1) and random (v4) UUIDs in bulk. Customize format, copy, or download them in one click.

Encode IDs and tokens as Base64 strings.

Open

Convert text to hexadecimal representation.

Open

Quick reversible text obfuscation.

Open

UUID Version

How many UUIDs?

Separator

Uppercase UUID (A–F) Add braces {uuid} Add URN prefix (urn:uuid:uuid)

URN format will wrap the UUID as urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.

Last generated: -

Generated UUIDs

Total: 0 Unique: 0 Version: -

Validation status will appear here when you click “Validate UUIDs”.

Choose a version, set the count, and click “Generate UUIDs”. Use v4 for random IDs and v1 for time-based IDs.