UUID Generator

Generate secure unique IDs instantly for APIs, databases, applications, and distributed systems.

550e8400-e29b-41d4-a716-446655440000

V4 • Secure • Instant • Free

Version 4 UUIDs use high-entropy random values and are the safest default for most APIs, databases, and app identifiers.

Generated UUIDs

Generated 0 UUIDs

No UUIDs generated yet

Click Generate UUID to create secure identifiers instantly.

Advanced UUID Settings

UUID Version

Version 4 UUIDs use high-entropy random values and are the safest default for most APIs, databases, and app identifiers.

API Access

curl /api/generate-uuid?v=4&count=1

How to Use UUID Generator

Open Advanced Settings and choose a UUID version.
Select quantity presets or enter a custom value.
Click Generate UUID to instantly create secure identifiers.
Copy, export, or use the API in your applications.

Frequently Asked Questions

Which UUID version should I use?

v4 is the most common and recommended format for modern apps and APIs.

When should I use v7?

Use v7 when you need sortable IDs optimized for databases and logs.

What is NIL UUID?

NIL UUID is an all-zero UUID used as a placeholder or sentinel value.

UUID Generator

Generate secure unique IDs instantly for APIs, databases, applications, and distributed systems.

550e8400-e29b-41d4-a716-446655440000

V4 • Secure • Instant • Free

Version 4 UUIDs use high-entropy random values and are the safest default for most APIs, databases, and app identifiers.

Generated UUIDs

Generated 0 UUIDs

No UUIDs generated yet

Click Generate UUID to create secure identifiers instantly.

Advanced UUID Settings

UUID Version

Version 4 UUIDs use high-entropy random values and are the safest default for most APIs, databases, and app identifiers.

API Access

curl /api/generate-uuid?v=4&count=1

How to Use UUID Generator

Open Advanced Settings and choose a UUID version.
Select quantity presets or enter a custom value.
Click Generate UUID to instantly create secure identifiers.
Copy, export, or use the API in your applications.

Frequently Asked Questions

Which UUID version should I use?

v4 is the most common and recommended format for modern apps and APIs.

When should I use v7?

Use v7 when you need sortable IDs optimized for databases and logs.

What is NIL UUID?

NIL UUID is an all-zero UUID used as a placeholder or sentinel value.

UUID Generator

Generated UUIDs

API Access

How to Use UUID Generator

Frequently Asked Questions

Which UUID version should I use?

When should I use v7?

What is NIL UUID?

Related Tools

UUID Generator

Generated UUIDs

API Access

How to Use UUID Generator

Frequently Asked Questions

Which UUID version should I use?

When should I use v7?

What is NIL UUID?

Related Tools