What is a UUID (or GUID)?
A UUID (Universally Unique Identifier), also known in the Microsoft world as a GUID (Globally Unique Identifier), is a 128-bit label used for information in computer systems. Because UUIDs are generated using cryptographic algorithms, the probability of generating a duplicate is so close to zero that it is considered practically impossible. They are heavily used by developers as primary keys in databases, unique transaction IDs in APIs, and session tokens.
Why Use Our Bulk UUID Generator?
- Version 4 Standard: Our tool strictly generates Version 4 UUIDs, which are completely random and currently the industry standard for secure identification.
- Bulk Generation: Unlike tools that make you click multiple times, you can generate up to 500 unique IDs in a single click, saving you significant development time.
- Custom Formatting: Instantly add braces, remove hyphens, or format strings in uppercase to match your exact database or coding requirements.
Is This Tool Secure?
Absolutely. Our free online UUID generator uses the native, cryptographically secure crypto.randomUUID() method provided by modern web browsers. All identifier generation happens 100% locally on your device. We do not track, log, or send any of your generated GUIDs to our servers, guaranteeing complete privacy for your projects.