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UUID Generator: v4, v1 and Bulk

Create random UUID v4 values in standard, uppercase, compact, or brace-wrapped formats without leaving the browser.

Inputs

Results

Results update as you use the interface above.

How to Use This UUID Generator

Choose how many UUIDs you need, select the output format, generate the list, then copy or download it.

  1. Set the count

    Enter how many UUID v4 values you need, from 1 up to 50. Use a higher count when seeding a database table or generating a batch of test record IDs.

  2. Choose the output format

    Standard lowercase gives the canonical 8-4-4-4-12 form. Uppercase, compact (no hyphens), and brace-wrapped formats are available for systems that expect a different casing or delimiter convention.

  3. Generate the values

    Click Generate. All values are created locally using the browser's crypto API, so the output is cryptographically random and never sent to a server.

  4. Copy or download

    Click any individual UUID to copy it, use Copy All for the full list as newline-separated text, or download a .txt file when you need to store the batch for later.