Generate unique identifiers

Version 4 for randomness, version 7 if you want them to sort by time, in whatever quantity you need.

Options

Namespace

For version 5: dns, url, oid or x500.

HyphensInclude the hyphens.UppercaseReturn uppercase hex.

Version

1, 4, 5 or 7.

1 to 7

1 credit

Doing this a lot?

Same tool, as an API.

This page calls exactly the same code you would from your own program — no daily cap, 1 credit per call. See the endpoint reference.