Secrets and encoding

How to generate a UUID

You need an id for a row, a request, or a filename. Generate it on UUID Generator.

Ben Fidge · · 4 min read

A version 4 UUID is a random id. A SHA-256 digest is a fingerprint of content.
A version 4 UUID is a random id, and a SHA-256 digest is a fingerprint of the same content.

What to run

Open UUID Generator. It stays in the browser.

How to read the result

Version 4 means random, not time-ordered and not a hash of the content.

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Generating again will not reproduce the value.

What to open next

Open Hash Generator if you needed a fingerprint of content instead of an id. It stays in the browser.

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