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UUID 生成器

生成 UUID/GUID 唯一标识符。

Features

  • Instantly generate random version 4 UUIDs with a single click for immediate use in your projects.
  • Create up to thousands of unique identifiers at once using our efficient bulk generation feature.
  • Easily copy your generated UUIDs to the clipboard individually or all at once with a simple click.
  • Utilize our tool entirely offline with absolute privacy, as all generation happens locally in your browser.
  • Enjoy a clean, ad-free interface designed to help developers get their keys quickly without any distractions.

How to Use

  1. Enter the desired number of UUIDs you want to generate into the quantity input box.
  2. Click the 'Generate' button to instantly create your random version 4 UUIDs.
  3. Review the generated list of unique identifiers displayed on your screen.
  4. Click the 'Copy' button next to a specific UUID, or use 'Copy All' to grab the entire list.
  5. Paste the copied identifiers directly into your database, application, or configuration files.

Frequently Asked Questions

What is a UUID used for?

A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify information in computer systems. They are commonly used in databases, APIs, and distributed software to prevent naming conflicts.

Are generated UUID v4 truly unique?

While not mathematically guaranteed, UUID version 4 uses cryptographically secure pseudo-random numbers making the chance of a duplicate practically zero. You can safely generate millions of them without fear of a collision.

Can I generate multiple UUIDs at once?

Yes, our tool features a bulk generation mode that allows you to create thousands of UUIDs simultaneously. Just enter the total number you need and click generate.

Is this UUID generator free to use?

Absolutely, our UUID generator is 100% free with no hidden costs or usage limits. You can generate as many unique identifiers as your project requires.

Does this tool store my generated UUIDs?

No, all UUIDs are generated locally within your browser using JavaScript. We do not track, store, or transmit your generated keys, ensuring complete data privacy.