UUID Generator

Generate cryptographically random UUIDs (version 4). All UUIDs are generated locally in your browser.

Generated UUIDs 

                

            

            
            
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What is a UUID?

                
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. Version 4 UUIDs are randomly generated and have a collision probability so low that they're considered practically unique.

                
UUIDs are commonly used as database primary keys, session identifiers, file names, and distributed system identifiers. This tool generates UUIDs using the Web Crypto API for cryptographically secure randomness.


                
UUID Format

                
UUIDs are typically displayed in 8-4-4-4-12 hexadecimal format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx. The '4' indicates version 4 (random), and 'y' is one of 8, 9, A, or B.


                
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