What is UUID Generator?

UUID Generator creates UUIDs and GUIDs in bulk. It supports random v4 and time-ordered v7, with options for hyphens and uppercase output.

Generated UUIDs can be copied directly or saved as a CSV file. It is useful when you need multiple identifiers at once.

How to Use

1. Choose the version.
2. Adjust the quantity and change the format (hyphens, uppercase) if needed.
3. UUIDs are regenerated automatically whenever the settings change. Use regenerate to draw again under the same conditions.
4. Review the results and use copy or CSV download.

Changing the format does not regenerate the values. It only changes how they appear in the display, copies, and CSV.

Main Settings

Version

v4 is random-based and suits general identifiers. v7 sorts by creation time, which suits sortable identifiers such as database primary keys.

Quantity

You can create multiple UUIDs at once. It is useful for comparing candidates or preparing test data in bulk.

Use Hyphens

Turn this on to keep the standard UUID format, or off if you need the 32-character continuous form.

Use Uppercase

This switches the output to uppercase. It is useful when you need to match an existing format.

Use Cases

• Creating unique identifiers for databases or applications
• Preparing multiple UUIDs for testing
• Using collision-resistant values for logs or file names

Things to Keep in Mind

• Generated UUIDs only live on the page. Regenerating or leaving the page discards them, so copy or download the ones you want to keep
• v7 contains the creation time, so the approximate generation time can be inferred from the value. v4 is recommended when the time must stay private