Bulk UUID Generator
Generate multiple UUIDs at once (up to 500)
Validate UUID
Enter a UUID to check if it's valid
Decode UUID
Enter a UUID to decode its components and extract information
Introduction
A UUID (Universally Unique Identifier) is a randomly generated identifier used for secure and unique identification in software development, databases, and APIs. Whether you need UUID v1, v4, or v7, our free online UUID generator makes it fast and simple.
With this tool, you can:
- Generate single or bulk UUIDs in different versions
- Validate and decode existing UUIDs
- Copy UUIDs instantly with one click
No need to install software—just generate, copy, and use in seconds.
What is a UUID?
A UUID is a 128-bit identifier commonly used in databases, distributed systems, and cryptographic applications. It consists of hexadecimal characters and ensures that identifiers are globally unique, even across different systems.
UUIDs are often used to:
- Uniquely identify database records
- Generate API keys or session tokens
- Ensure data integrity in large distributed systems
- Track objects securely in cloud computing
UUID Generator – Features & Supported Versions
Our online UUID generator supports multiple UUID versions based on different use cases:
| UUID Version | Use Case |
|---|---|
| UUID v1 | Uses timestamp and MAC address for uniqueness. Best for time-ordered databases. |
| UUID v4 | Randomly generated, most commonly used for API keys, authentication, and security. |
| UUID v7 | Latest standard, optimized for sorting and indexing in databases. |
| GUID | Microsoft's implementation of UUID, commonly used in Windows-based applications. |
Why Use Our UUID Generator?
- Instant & Free – Generate UUIDs with zero hassle
- Supports Bulk Generation – Create up to 500 UUIDs at once
- Validates & Decodes UUIDs – Check if a UUID is correctly formatted
- Copy Instantly – One-click copy to clipboard for seamless integration
- Multiple Versions – Support for v1, v4, v7, and GUID
How UUIDs Are Generated
UUIDs are created based on their version:
- Version 1 (v1): Uses a timestamp + device MAC address
- Version 4 (v4): Fully random with cryptographic security
- Version 7 (v7): Uses a Unix timestamp for efficient ordering
How to Generate a UUID?
- Choose your UUID version (v1, v4, v7, or GUID)
- Click Generate to create a UUID
- Copy the UUID for use in your applications
Need multiple UUIDs? Use our Bulk UUID Generator to create up to 500 UUIDs at once!
Most Asked FAQs About UUIDs
How is a UUID generated?
UUIDs are generated using different methods based on their version. UUID v1 uses a timestamp, UUID v4 is random, and UUID v7 is optimized for sorting.
What is the difference between UUID v1, v4, and v7?
- UUID v1: Based on the timestamp and device MAC address
- UUID v4: Fully random and most commonly used for security
- UUID v7: Time-based but optimized for database indexing
Is a UUID always unique?
Yes, UUIDs have a very high probability of uniqueness, especially UUID v4 and v7, which use strong randomization algorithms.
Can UUIDs be decoded?
UUIDs do not store sensitive information, but UUID v1 and v7 contain timestamp data, which can be extracted.
Where are UUIDs used?
UUIDs are widely used in databases, API authentication, distributed systems, and cryptographic security.
Are UUIDs case-sensitive?
No, UUIDs are not case-sensitive, meaning a1b2c3d4-e5f6 is the same as A1B2C3D4-E5F6.
What is a GUID?
A GUID (Globally Unique Identifier) is a UUID implementation by Microsoft for Windows applications.
Why Our UUID Generator Stands Out
- Multiple UUID versions including v1, v4, and v7
- Bulk UUID generation for faster workflow
- Validation & decoding tools for existing UUIDs
- Fast, secure, and easy-to-use interface