Set your options, generate instantly.
Choose how many UUIDs you need and how they should be formatted. Everything is generated locally with your browser's secure random number source — nothing is ever sent anywhere.
Added before every UUID. Leave empty for none.
Added after every UUID. Leave empty for none.
Four steps, a batch of UUIDs you can trust.
No manual required — here's the entire flow.
Pick a quantity
Choose how many UUIDs you need — from 1 to 100 — and every one will be generated independently.
Set formatting
Toggle uppercase, hyphens, braces, and add an optional prefix or suffix to match your system's requirements.
Generate
Tap Generate UUIDs to get a fresh batch. Not happy with the results? Tap Regenerate to try again with the same settings.
Copy or download
Copy a single UUID, copy the whole batch, or download it as a text file in the output format you chose.
Built for real security, not just randomness.
The details that make a UUID generator trustworthy, without ever leaving your browser.
Runs on your device
Every UUID is generated locally using the Web Crypto API. Nothing is logged, saved, or sent anywhere — ever.
Format exactly as needed
Match your database, API or application format with a single click — no post-processing required.
Bulk generation
Generate a single identifier or a whole batch at once, ready to copy or download in plain, comma, quoted or SQL format.
Questions people actually ask.
The short answers — with the long ones one tap away.
How do I generate a UUID with this tool?+
Set how many UUIDs you need, choose your formatting options like uppercase, braces or hyphens, then tap Generate UUIDs. Your results appear on the right, each with its own copy button.
Are my UUIDs sent to a server?+
No. Every UUID is generated locally in your browser using the Web Crypto API, and nothing is ever uploaded, logged or stored. Closing or refreshing the page clears everything.
What version of UUID does this generator produce?+
This tool generates version 4 (random) UUIDs, which are the most common type used for unique identifiers in databases, APIs and applications. Each UUID is created from cryptographically secure random values.
Can I generate UUIDs in bulk?+
Yes. Choose a quantity of 1, 5, 10, 25, 50 or 100 and every UUID in the batch is generated independently with the same formatting rules.
Can I format UUIDs with braces or without hyphens?+
Yes. Use the formatting options to wrap UUIDs in curly braces {…}, remove hyphens, switch to uppercase, or add a custom prefix or suffix to every generated value.
Does this tool store or remember any UUID I generate?+
No. Nothing is saved, logged or synced anywhere. Once you leave or refresh the page, every generated UUID is gone — copy or download the ones you want to keep.
Is this UUID generator free to use?+
Yes, it's completely free with no account, no sign-up, and no limit on how many UUIDs you generate.