What is a UUID Generator?

A UUID Generator is a utility tool that creates Universally Unique Identifiers (UUIDs), also known as GUIDs (Globally Unique Identifiers). UUIDs are 128-bit identifiers used in software development to uniquely identify resources, database records, API endpoints, and distributed systems without requiring centralized coordination. This generator supports both UUID v1 (timestamp-based) and UUID v4 (random) formats, providing developers with cryptographically secure identifiers that are virtually guaranteed to be unique across time and space. UUIDs are essential for distributed systems, microservices architecture, and any application requiring unique identifiers. Explore our free AI tools for more development utilities.

How to Use a UUID Generator?

Generating UUIDs is straightforward:

Select the UUID version: Choose v4 for random UUIDs (most common) or v1 for timestamp-based UUIDs
Set the quantity: Specify how many UUIDs you need (1 to 100)
Generate: Click the generate button to create unique identifiers
Copy: Use the copy button to copy individual UUIDs to your clipboard
Validate: Use the validation tool to verify if a string is a valid UUID format

UUIDs are commonly used in database primary keys, API request IDs, session tokens, and distributed system identifiers. The v4 format (random) is recommended for most applications as it provides better privacy and doesn't reveal timestamp information. Browse our AI-powered tools for more developer resources.

UUID Generator

Generate unique identifiers (UUIDs) in various formats. Create single or bulk UUIDs with v1 (timestamp-based) or v4 (random) versions, and validate existing UUIDs.

🔑

Ready to Generate UUIDs?

Configure your settings above and generate unique identifiers for your projects.

📚 UUID Guide

UUID Versions

Version 4 (Random)

Generated using random or pseudo-random numbers. Most commonly used version. Provides 122 bits of entropy.

Version 1 (Timestamp)

Based on timestamp and MAC address. Guarantees uniqueness across time and space. Note: This is a pseudo-implementation.

Common Use Cases

Database Primary Keys:

Use UUIDs as unique identifiers in distributed databases

API Resources:

Identify resources in REST APIs without exposing internal IDs

Session Management:

Generate unique session tokens and temporary identifiers

File Names:

Create unique file names to avoid conflicts

UUID Format

Standard UUID format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

32 hexadecimal digits displayed in 5 groups separated by hyphens (8-4-4-4-12)

Loading...

Please wait, page is loading.

What is a UUID Generator?

How to Use a UUID Generator?

Generating UUIDs is straightforward:

Select the UUID version: Choose v4 for random UUIDs (most common) or v1 for timestamp-based UUIDs

Set the quantity: Specify how many UUIDs you need (1 to 100)

Generate: Click the generate button to create unique identifiers

Copy: Use the copy button to copy individual UUIDs to your clipboard

Validate: Use the validation tool to verify if a string is a valid UUID format