UUID Generator

Generate random UUID v4 identifiers.

How many? (5)

Guides, articles & comparisons

SHA-256 Hash Explained: What It Is and When to Use It

What a SHA-256 hash is, why one changed letter changes everything, how it differs from encryption, and how to generate SHA hashes free in your browser.

UUID v4 Explained: How Random IDs Avoid Collisions

What a UUID guarantees, why version 4 is the common default, how unlikely a collision really is, and when a UUID is the wrong choice for your database.

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