Générateur UUID

Créez des UUID uniques pour identifier les informations système.

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UUID Generator - Create Unique Identifiers Online

Have you ever needed a way to uniquely identify something in your software or system? That's where a UUID Generator comes in handy. UUID stands for Universal Unique Identifier, a fancy term for a string of characters that's guaranteed to be unique. It's like a digital fingerprint for data. Our UUID Generator is a tool that creates these unique IDs for you, right in your browser!

What is a UUID?

A UUID is a 128-bit number used to uniquely identify information in computer systems. When you generate a UUID, it's so unique that you can almost bet that no one else in the world will generate the same one again. There are different versions of UUIDs, like V1, V3, V4, and V5, each with its own method of creation. You might wonder, "Why so many versions?" Well, it's all about giving you options to choose the best fit for your needs!

For a simple breakdown, think of UUIDs like snowflakes. No two are the same. If you're curious about the nitty-gritty, like how each version differs, there's plenty of info out there on sites like Wikipedia.

Why Use a UUID?

UUIDs are perfect when you need an ID that doesn't spill the beans about your data. They're like secret agents carrying a briefcase handcuffed to their wrist; the contents are secure and anonymous. This makes UUIDs ideal for software development, IT systems, and any situation where you need to keep things under wraps.

They're also super handy in databases. Imagine you have a million records, and each needs a unique ID. You could count from 1 to 1,000,000, but what if you add a record out of order or delete one? That's where UUIDs shine. They keep things unique without breaking a sweat.

How Our UUID Generator Works

Using our UUID Generator is as easy as pie. Here's how you do it:

  1. Select Quantity: Decide how many UUIDs you need. Just one? A dozen? You got it.
  2. Choose Version: Pick from NIL, V1, V3, V4, or V5. Not sure which one? V4 is a good all-rounder.
  3. Generate: Hit the button and watch the magic happen. Unique UUIDs appear before your eyes.
  4. Copy: Found a UUID you like? Click copy to save it to your clipboard. Easy!

And the best part? It's super secure. Everything happens in your browser, so there's no worry about your data taking a trip to some server far, far away.

Applications of UUIDs

UUIDs are like the Swiss Army knives of the digital world. Here are just a few ways they're used:

  • Software Development: Giving objects, entities, or sessions a unique ID.
  • IT Systems: Uniquely identifying system components across networks.
  • Databases: Acting as primary keys for database records, ensuring each entry is unique.

The possibilities are endless. Anytime you need something uniquely identified, a UUID is your go-to solution.

Tips for Using UUIDs

While UUIDs are incredibly useful, here are a couple of tips to keep in mind:

  • Storage Size: Remember, UUIDs are 128 bits long. They can take up more space than a simple integer ID, so plan your database storage accordingly.
  • Readability: UUIDs aren't exactly easy on the eyes. If you need to share IDs with humans (and not just computers), consider a more readable alternative.


In the world of software and systems, uniqueness is key. That's where our UUID Generator steps in, offering a simple, secure way to create unique identifiers right in your browser. Whether you're coding up the next big app or setting up a complex IT system, our tool is here to make your life a little easier.

Ready to give it a try? Generate your first UUID today and experience the simplicity and security of our tool firsthand!

For more information on UUIDs and their applications, check out these resources:

  • Understanding UUIDs & How UUIDs Are Used in Software Development: UUID - wikipedia
  • The Different Versions of UUIDs Explained: UUID - MDN

Dive into these links to deepen your understanding of UUIDs and how to leverage them in your projects.