UUID Generator
Generate cryptographically random UUID v4 identifiers.
What is the UUID Generator Tool?
Our free online UUID Generator allows you to instantly generate batches of cryptographically secure Version 4 UUIDs (Universally Unique Identifiers). It is a perfect tool for database keys, session IDs, and transaction tracking.
How to Use UUID Generator
- 1Enter the number of UUIDs you want to generate in the Count box.
- 2Click the Generate button to instantly generate a list of unique identifiers.
- 3Copy the generated UUIDs to your clipboard or download them as a .txt file.
Common Use Cases
- •Creating unique primary keys for database records.
- •Generating secure, non-repeating session IDs for user transactions.
- •Tracking assets and data elements across distributed microservices.
🔒 Privacy & Processing Notice
This tool processes all data entirely in your browser using client-side JavaScript. Your input is never uploaded to any server, ensuring 100% privacy and confidentiality. No data is stored, logged, or transmitted.
Frequently Asked Questions
What is a UUID Version 4?
A Version 4 UUID is a 128-bit identifier generated using random numbers. It has 122 bits of entropy, making the probability of collision virtually zero.
How many digits are in a UUID?
A standard UUID is formatted as a 36-character string consisting of 32 hexadecimal digits separated by 4 hyphens into 5 groups (8-4-4-4-12).
Can two generated UUIDs ever clash?
Practically, no. The space size of possible UUID v4 combinations is 2^122. Even generating billions of UUIDs daily, a collision is statistically impossible.
Is UUID Generator free to use?
Yes, UUID Generator is 100% free with no signup required.
Is my data safe?
All processing happens in your browser. Your data never leaves your device.
Does it work offline?
Once the page loads, UUID Generator works entirely client-side.