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Choose a quantity
Enter how many UUIDs you need, from 1 to 100.
Developer Tools
UUID Generator
Generate random UUID v4 values securely in your browser.
Generate standards-compliant, random UUID v4 values using your browser's secure random number generator — entirely on your device. Need a random password instead? Try the Password Generator.
UUIDs are generated locally using your browser's secure random number generator. Nothing is sent anywhere.
Results
No UUIDs generated yet.
How it works
Private UUID generation in your browser
2
Generate
Click Generate to create random, standards-compliant UUID v4 values.
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Copy what you need
Copy an individual UUID, or copy the entire list at once.
Use cases
When this comes in handy
Seed test data
Generate unique identifiers for test fixtures, mock records, or sample data.
Create database keys
Get a batch of UUIDs to use as primary keys or reference IDs during development.
Tag resources
Generate a unique ID for a file, request, session, or other tracked resource.
FAQ
Common questions
Are these UUIDs uploaded anywhere?
No. UUIDs are generated and stay entirely in your browser.
What UUID version does this generate?
UUID version 4 (random), generated using your browser's cryptographically secure random number generator.
How many UUIDs can I generate at once?
Up to 100 per generation. Click Generate again for more.
Are the UUIDs guaranteed to be unique?
Each UUID v4 is generated from 122 random bits, making collisions astronomically unlikely — the same guarantee any standard UUID v4 generator relies on.
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