What is UUID Generator?
Universally Unique Identifiers (UUIDs) are 128-bit labels used for information in computer systems. Our generator complies with RFC 4122 standards to generate true v4 (random) and v1 (timestamp-based) UUIDs. Because it executes entirely locally, you can safely generate thousands of UUIDs for production database seeding without risking sequence leakage to third parties.
Before you use this tool
Start with a small, representative example and check the result before you rely on it in a larger workflow. Keep the original data and look closely at the edge cases. The safest tool is the one whose limits you understand.
Deep Dive: UUID Generator
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Core Capabilities
- Full support for UUID v4 (Random) and v1 (Timestamp)
- Bulk generate up to 1000 IDs at once
- Instant formatting: hyphens vs no-hyphens
- Case switching: UPPERCASE vs lowercase
- Integrated UUID validation tool
- locally processed and private and runs in-browser
Why It Matters
- Avoid Collisions: Never worry about two items having the same ID again.
- Dev Efficiency: Rapidly seed databases or test APIs with standard data.
- Standardized: Use the same format as professional developers worldwide.
- Offline friendly: Generate IDs locally even without a network connection.
Quick Start Guide
Pick your flavor: Choose between v4 (random), v1 (time-based), or others. If you aren't sure, just stick with v4, it's the standard for almost everything.
Set the count: Need just one? Or a thousand? Enter the number you need. Our generator is fast, so don't be afraid to go big if you need a lot of data.
Format it: Some apps want the hyphens (like the standard '8-4-4-4-12' look), some don't. You can toggle that with one click. You can also switch between uppercase and lowercase.
Copy the loot: Hit "Copy All" to grab your whole batch, or click the little icon next to a single ID to just grab that one. Super convenient for pasting into your code editor.
Validation Check: Switch to the validation tab if you want to paste a UUID and check if it actually follows the official rules. It's a great way to debug weird IDs.
Questions?
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Founder & Lead Developer at FileMint
Building privacy-first browser tools powered by WebAssembly. Focused on making file processing fast, secure, and accessible — without ever uploading your data to a server.
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