Generators
UUID & Random ID Generator
Generate cryptographically-random UUID v4 identifiers one at a time or in bulk, copy them individually or as a batch. Perfect for database keys, API request IDs and test data — produced locally with the Web Crypto API.
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The UUID & Random ID Generator creates cryptographically-random version-4 UUIDs — the universally unique identifiers used for database primary keys, API request IDs, idempotency keys and test data. Generate one at a time or a whole batch, then copy them individually or all at once. Each ID is produced with the browser's Web Crypto API, so they're genuinely random and collision-resistant.
This free tool by Hosting Cambodia is a quick companion for developers who need identifiers on demand without wiring up a library or hitting a backend. Everything is generated locally in your browser.
Frequently asked questions
What is a UUID v4?
A version-4 UUID is a 128-bit identifier generated from random numbers, written as 36 characters like 3f2504e0-4f89-41d3-9a0c-0305e82c3301. The odds of two colliding are astronomically small, which is why they're used as unique keys.
Are these UUIDs really random?
Yes. They use the browser's crypto.getRandomValues / crypto.randomUUID, a cryptographically secure random source — not the weaker Math.random — so they're suitable for production identifiers.
Can I generate many at once?
Yes. Choose how many you need and generate a batch, then copy the whole list — handy for seeding databases or creating test fixtures.
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