Are these UUIDs truly random?

Yes. They use crypto.randomUUID() which generates cryptographically secure random UUIDs.

UUID v4 uses random numbers for all bits (except version and variant). It looks like: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.

What are UUIDs used for?

Database primary keys, session tokens, unique identifiers for distributed systems, and anywhere a unique ID is needed.

Can two UUIDs collide?

Theoretically possible but practically impossible. There are 2^122 possible v4 UUIDs — collision probability is astronomically low.

UUID Generator

Developer Tools

Generate random UUID v4 identifiers.

100% client-side processing

100% client-side — your text never leaves your browser

Input

1 characters|0 words|1 lines

Output

e068297d-f42f-45e1-b569-39e1314404d0
2d7b5a29-c2fa-4085-acac-543acb849277
96990308-7a6d-415f-982f-3296fe7fcb3c
17c23614-9cd7-45e0-bc65-0a78d7930637
d241a5d7-a3ec-47e1-aa74-fc8de473eaf2

1 characters|0 words|1 lines

How to Use UUID Generator Online

Paste your data into the input field above
The result appears instantly in the output area
Click "Copy" to copy the result to your clipboard

Generate random UUID v4 identifiers.. Runs 100% client-side — no data is sent to any server.

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Frequently Asked Questions

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UUID Generator

How to Use UUID Generator Online

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Frequently Asked Questions

Are these UUIDs truly random?

What is UUID v4?

What are UUIDs used for?

Can two UUIDs collide?

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