Generators · Identifiers

UUID Generator

Generate RFC-4122 UUIDs in bulk — cryptographically random, straight from your browser.

QuantityUppercaseRemove hyphens

Generated identifiers

Frequently asked

Are these safe as database keys?

v7 UUIDs are time-ordered, keeping index locality high — a solid default for primary keys. v4 is fully random when you want no ordering signal.

Is the randomness secure?

Yes — IDs use the browser's Web Crypto (crypto.randomUUID / getRandomValues), never Math.random.

Pick a format — UUID v4 (random), v7 (time-ordered) or NanoID.

Set the quantity and toggle uppercase or hyphen removal.

Copy a single ID, or grab the whole batch with Copy all.