UUID Generator
Generate secure random UUIDs (Version 4). Bulk generation supported.
Frequently asked questions
Which UUID version is generated?
Version 4, random UUIDs from the browser's cryptographically secure random number generator. Bulk generation is supported.
Can two UUIDs be the same?
In theory yes, in practice the probability with 122 random bits is so small that it can be ignored.
How does this tool work?
Generate unique identifiers (Universally Unique Identifiers) for databases and applications.
You can generate one or more version 4 (random-based) UUIDs at once. Customize the output by, for example, removing hyphens, adding braces, or switching to uppercase. Suitable for test data or primary keys in databases and APIs.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.