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Tools / 05 · UUID Generator
UUID Generator
Generate 1 to 100 UUID v4 identifiers locally using the browser crypto API.
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Frequently asked questions
- Which UUID versions can I generate?
- The generator supports v4 (random), v1 (time-based with MAC), and v7 (time-ordered, better for databases). v4 is the right default for most identifiers.
- How unique are they really?
- A v4 UUID has 122 random bits, making accidental collisions so improbable that you will never hit one in practice. They are safe for primary keys and request IDs.
- Can I generate many at once?
- Yes. Set a count and receive a batch, each on its own line, ready to paste into code or a database seed.
- Are they generated locally?
- Yes. The random bytes come from your browser's crypto API, so identifiers never touch a server.