Bulk UUID / GUID Generator

Generate cryptographically secure UUID v4 identifiers. Instantly export up to 1,000 keys as raw text, JSON arrays, CSVs, or SQL values.

Quantity

Format

Text Case

Output Structure

0 UUIDs Generated

History (Last 10)

🔒 Processed via your browser's native Crypto API. Zero server tracking.

How to Use the Bulk UUID Generator

Set the Quantity: Enter how many UUIDs you need in the first box. You can generate up to 1,000 keys instantly.
Select the Format & Case: Choose whether you want the standard hyphens, compact strings, or wrapper brackets, and set your preferred capitalization.
Choose Developer Wrappers (Optional): If you are pasting these directly into a database or code editor, change the "Output Structure" to generate a perfectly formatted JSON array or SQL insert list.
Generate & Grab: Click the yellow ⚡ button. You can then copy everything to your clipboard or download it as a raw `.txt` file.

What is a UUID / GUID?

A UUID (Universally Unique Identifier), often referred to as a GUID (Globally Unique Identifier) in Microsoft ecosystems, is a 128-bit value used to uniquely identify information across computer systems without requiring a central database or authority to manage them.

This generator creates UUID version 4 identifiers. They are mathematically constructed entirely from randomized bits rather than being based on your computer's hardware MAC address or the current timestamp. The mathematical possibility of generating a duplicate UUID v4 is so statistically negligible that it is considered practically impossible.

Understanding UUID Versions

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Version 4 (Randomized) The global standard for modern databases. 122 of the 128 bits are purely generated by cryptographic randomization. This ensures maximum privacy and absolute zero predictability.

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Version 1 (Time-Based) Generates an ID based on the precise current timestamp and the MAC address of the computer generating it. Helpful for chronological sorting, but lacks privacy.

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Version 5 (Name-Based) A deterministic UUID. If you pass the exact same "name" string and "namespace" into a v5 algorithm, it will always yield the exact same hashed UUID.

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The Nil UUID A special, edge-case UUID where all 128 bits are set to zero (00000000-0000-0000-0000-000000000000). Used strictly as a template or placeholder in software code.

Why Choose Our Generator?

✅ Developer Friendly Formats — Need a JSON Array or an SQL List to seed your database? Our wrapper settings format your text instantly so you don't have to write regex scripts.
✅ Non-Destructive Formatting — If you change a setting (like switching from Uppercase to Lowercase), the tool reformats your existing list of IDs instead of destroying them and generating new ones.
✅ Cryptographically Secure — We do not use the weak, predictable `Math.random()` function. This tool taps directly into your browser's crypto.getRandomValues() API to ensure true cryptographic entropy.
✅ 100% Client-Side Privacy — Runs entirely in your browser. None of your generated keys are ever transmitted over the internet or logged in a database.

Frequently Asked Questions

Are UUID and GUID exactly the same thing?

Yes, functionally speaking. UUID is the international standard term (defined by RFC 4122), whereas GUID is Microsoft's proprietary name for the exact same concept. They share the same format and are completely interchangeable.

How unique are UUID v4 identifiers?

A UUID v4 contains 122 bits of pure randomness, giving roughly 5.3 × 10^36 possible combinations. To even reach a 50% chance of a single collision occurring, you would need to generate over 2.71 quintillion UUIDs. For all software and database applications, they are practically unique.

Can I use these generated UUIDs in a production database?

Yes. Because the generator utilizes the browser's native cryptographic API rather than standard JavaScript math routines, the output is fully RFC 4122 compliant and entirely safe for production primary keys, API tokens, and secure session identifiers.