UUID GENERATOR
Generate universally unique identifiers (UUIDs) for your applications. Create one or multiple UUIDs instantly.
Number of UUIDs
What is UUID?
UUID (Universally Unique Identifier) is a 128-bit identifier that is designed to be unique across all systems without requiring a central authority. The format is "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx" where x is a hex digit and y is 8, 9, A, or B.
UUIDs are widely used in software development for database keys, session IDs, transaction IDs, and any scenario where unique identification is needed.
Why Use UUID Generator?
- Distributed systems: Generate unique IDs across multiple systems without coordination.
- Database keys: Use as primary keys in databases without database-generated IDs.
- Security: UUIDs are unpredictable and hard to guess.
- No collisions: Extremely low probability of generating duplicate IDs.
How to Use UUID Generator
- 1Set quantity
Enter how many UUIDs you want to generate (1-100).
- 2Generate
Click the button to generate your UUIDs.
- 3Copy
Use the copy button to copy all UUIDs to clipboard.
Common Use Cases
Database Primary Keys
Use as unique identifiers in databases without auto-increment.
Session IDs
Create unique session identifiers for user authentication.
API Keys
Generate unique API keys for developer access.
File Names
Create unique filenames to prevent overwrites.
Frequently Asked Questions
What version of UUID is generated?
This tool generates version 4 UUIDs (random), which are the most common type.
How many UUIDs can I generate?
You can generate between 1 and 100 UUIDs at once.
Are UUIDs truly unique?
Yes, the probability of generating the same UUID twice is extremely low (1 in 2^122).