UUID Generator
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Instantly generate as many UUID v4 values as you need, with options for hyphens and letter case.
5dc3ab5d-0cbd-403b-a839-e46cb03e0672c26d98c5-524c-40a1-938c-18805747d5892d2e9b9a-0f7c-453a-8407-bac335982cfff19632c1-adb4-4a4d-aff7-8e7bcbcad74bce968f0e-0876-4132-b95f-ceceebc31d88How to use
Enter how many UUIDs you want (up to 100).
Choose whether to include hyphens and pick upper or lower case.
Click Regenerate to get a fresh set of values.
Use the per-row copy button or Copy all to grab what you need.
Need a strong password too? Check out the Password Generator.
자주 묻는 질문
Q1. Are the generated UUIDs stored on a server?
No. Every UUID is generated on the spot using the browser's cryptographic random generator (crypto.randomUUID) and is never sent to or stored on a server.
Q2. What is a UUID v4?
A UUID v4 is a 128-bit identifier that's mostly randomly filled, making the chance of two different values colliding practically zero — which is why it's widely used as a database primary key or session ID.
Q3. Is a UUID still valid without hyphens?
Yes. Hyphens are just readability separators, so removing them doesn't change the underlying 32-character hex value. The standard notation, though, is the 8-4-4-4-12 hyphenated format.
Q4. Is GUID the same thing as UUID?
Yes, they're effectively the same concept. GUID is Microsoft's name for the UUID standard, and the format and generation method are identical.
Q5. How many can I generate at once?
You can generate up to 100 at a time. If you need more, just click Regenerate again.
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