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Runs locally
$ devdesk uuid--local
Generators

Random UUID v4 batch generator

Generate up to 100 random UUID v4 identifiers using browser cryptography. Choose uppercase, copy or download without saving or uploading results.

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How to use

Uses crypto.randomUUID to generate up to 100 v4 UUIDs. UUIDs are identifiers and should not be used as access credentials.

Your input stays yours

Step by step

  1. Enter a quantity from 1 to 100.
  2. Optionally select Uppercase, then choose Generate.
  3. Each line contains one UUID, ready to copy or download.

Generate five identifiers

5

Expect five UUID lines, with different values each run. The third hyphen-separated group of a v4 UUID begins with 4.

Frequently asked questions

Are collisions impossible?

Random UUID collisions are very unlikely, but not mathematically impossible. Use database uniqueness constraints where the application needs them.

Should I use a UUID as a password?

UUIDs identify objects and should not be used as access credentials. Use the password generator for passwords and manage credentials according to the authentication system.

Why might generation fail on HTTP?

crypto.randomUUID requires a secure context. The production site uses HTTPS; some development environments or older browsers may not expose the API.

References

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