UtilStore

UUID Generator

Generate unique identifiers (v1/v4)

Encoding & Security

UUID Generator

Generate unique identifiers (UUID v1 and v4)

Count:

About UUIDs

UUID v4: Randomly generated, most commonly used. Provides excellent uniqueness without coordination.

UUID v1: Time-based, includes timestamp and MAC address info. Useful when ordering matters.

What is a UUID Generator?

A UUID (Universally Unique Identifier) generator creates 128-bit identifiers using cryptographic randomness. Version 4 UUIDs have 122 random bits, making collisions virtually impossible. Widely used for database primary keys, session IDs, and distributed system identifiers.

Frequently Asked Questions

Are UUIDs truly unique?

Practically yes. The probability of collision is ~1 in 5.3 × 10³⁶.

What version is generated?

Version 4 (random), the most commonly used for general-purpose identification.

Can they be used as database keys?

Yes. Common in distributed databases, though they use more storage than integers.

Detailed Guide & Usage

A UUID (Universally Unique Identifier) generator creates 128-bit identifiers using cryptographic randomness. Version 4 UUIDs have 122 random bits, making collisions virtually impossible. Widely used for database primary keys, session IDs, and distributed system identifiers.

How to Use:

  1. Select the quantity of UUIDs to spawn.
  2. Click generate.
  3. Copy one or copy the whole list comma-separated.

FAQ

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