Online UUID Generator

Generate cryptographically strong Universally Unique Identifiers (UUIDs) instantly with TinyTool's Online UUID Generator. Our tool allows you to generate version 4 UUIDs in bulk, customize their format, and use them for your development and testing needs.

What is a UUID?

A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. Version 4 UUIDs are randomly generated and are the most commonly used type for identifying unique records in databases, session IDs, and more.

Why use our UUID Generator?

• Bulk Generation: Generate up to 500 UUIDs at once to populate your database with mock data.
• Custom Formatting: Toggle between uppercase/lowercase and include/exclude hyphens or braces.
• Security First: UUIDs are generated locally in your browser using the crypto.randomUUID() API, ensuring maximum randomness and privacy.
• Fast & Simple: One-click generation and easy "Copy All" functionality.

How to use the UUID Generator

1. Set Quantity: Enter how many UUIDs you need (up to 500).
2. Customize: Use the switches to adjust the casing or add formatting like braces.
3. Generate: Click the "Generate New" button to refresh the list.
4. Copy: Click the copy icon next to any UUID or use "Copy All" for the entire list.

Common Use Cases

• Database Primary Keys: Use UUIDs as unique identifiers for your SQL or NoSQL database records.
• API Testing: Generate unique identifiers for mocking API requests and responses.
• Session Identifiers: Create secure and unique session tokens for web applications.
• File Naming: Ensure uploaded files have unique names to avoid collisions.

TinyTool is built for developers who value speed and simplicity. Bookmark this page for your daily development needs!