Online GUID Generator - Generate Single or Bulk Globally Unique Identifiers (GUIDs)

What is a GUID and Why Use One?

A GUID (Globally Unique Identifier) is a 128-bit identifier used to uniquely identify objects, entities, or resources across distributed systems. Our free online GUID generator creates cryptographically strong unique identifiers perfect for databases, APIs, software development, and system integration.

GUIDs ensure uniqueness across different systems without requiring central coordination. They're essential for database primary keys, session tokens, file identifiers, and distributed computing environments where collision-free identification is critical.

How to Generate GUIDs Online

Enter the number of GUIDs needed (1-100 at once)

Choose your preferred GUID format (standard, uppercase, lowercase)

Click 'Generate' to create unique identifiers instantly

Copy individual GUIDs or download the entire list

Use bulk generation for large-scale applications

GUID Format Options Available

Standard Format: 12345678-1234-5678-9ABC-123456789ABC

Uppercase: ALL LETTERS IN CAPITAL FORMAT

Lowercase: all letters in small format

No Hyphens: 123456781234567589AB123456789ABC

Braces: {12345678-1234-5678-9ABC-123456789ABC}

Custom formatting for specific programming languages

Common Use Cases for GUIDs

Database Keys: Primary keys for distributed databases and microservices

API Development: Unique request IDs and resource identifiers

File Systems: Unique file and directory identification

Session Management: Secure user session tokens and cookies

Software Development: Component IDs, version tracking, and debugging

Follow us on social media:
© 2025-2026. All rights reserved.

Disclaimer

The web tools provided on this website are offered for free and for general informational or utility purposes only. We make no warranties about the completeness, reliability, accuracy, or suitability of these tools for any particular purpose. Use of these tools is at your sole risk.No Data Storage or Transmission: We do not store, collect, or transmit any user data entered into these tools outside of your web browser. All processing and calculations occur locally within your browser environment.External Links: This website may contain links to external websites. We are not responsible for the content or privacy practices of these websites.By using this website and its tools, you agree to this disclaimer.We reserve the right to modify this disclaimer at any time without notice. It is your responsibility to review this disclaimer periodically for changes.