UUID Generator — Free Online UUID Tool

How to Use the UUID Generator

Follow these steps for best results.

Set quantity

Enter how many UUIDs you need — from 1 to 100.

Generate

Click Generate UUIDs to produce the list instantly.

Copy all

Click Copy All to copy every UUID to your clipboard.

Why Use This Tool?

UUID v4 uses random numbers, making duplicate UUIDs statistically impossible across all computers worldwide. They are ideal as primary keys in distributed databases where sequential integers create conflicts, as session tokens, file names for uploads, and idempotency keys in APIs. Browser-side generation means no server logs your generated IDs.

Frequently Asked Questions — UUID Generator

Common questions about this tool.

Are UUID v4s truly unique?

With 122 bits of randomness, the probability of a duplicate across trillions of generations is statistically negligible. In practice, collisions never occur.

Can I use these as database primary keys?

Yes. UUID v4 is a common primary key choice in distributed systems and NoSQL databases.

Are UUIDs valid for use in URLs?

Yes. UUID v4 contains only hex characters (0-9, a-f) and hyphens, which are all URL-safe.

Is my UUID logged anywhere?

No. Generation uses local browser randomness. No network request is made.

About UUID Generator

A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as a 32-character hexadecimal string divided by hyphens: 550e8400-e29b-41d4-a716-446655440000. Version 4 UUIDs are generated from random numbers, making the probability of two identical UUIDs across all systems worldwide effectively zero. They are used to uniquely identify database records, session tokens, API resources, and file names without requiring a central authority. Browser-side generation means no server logs your generated IDs.

🆔 UUID Generator

How to Use the UUID Generator

Why Use This Tool?

Frequently Asked Questions — UUID Generator

About UUID Generator

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