Home About Contact
Back to Home

UUID Generator

Generate random UUIDs (v4) for your applications and databases.

Settings
Output

      

      

        
0
Generated

        
v4
Version

        
122
Random bits

      

    

  

    
Overview
Generate UUIDs for unique identifiers (v4).
Best for
  • Create IDs for database records.
  • Tag events in logs.
  • Create IDs for mock data or tests.
Step-by-step
  1. Click generate or choose quantity.
  2. Copy the UUIDs.
  3. Use them as unique keys.
Examples

        
Example 1

        

          

            
Input

            
Generate 1

          

          

            
Output

            
3f2504e0-4f89-11d3-9a0c-0305e82c3301

          

        

        
Standard UUID v4 format.

      

        
Example 2

        

          

            
Input

            
Generate 3

          

          

            
Output

            
uuid1, uuid2, uuid3

          

        

        
Batch generation in one click.

      

        
Example 3

        

          

            
Input

            
Uppercase + no dashes

          

          

            
Output

            
3F2504E04F8911D39A0C0305E82C3301

          

        

        
Formatting options change appearance.

      
Common mistakes
  • UUIDs are not sequential by time.
  • Do not reuse IDs across entities.
  • Removing dashes may break systems expecting standard UUIDs.
Pro tips
  • Generate multiple IDs for batch imports.
  • Store in lowercase for consistency.
FAQ
Are UUIDs cryptographically secure?
v4 is random, but use dedicated crypto tokens for security.
Does this upload my data?
No. Everything runs locally in your browser.
Can I use it offline?
Yes. After the page loads, most tools work offline. Some assets (like fonts) may need a connection.
Data & privacy
All processing happens locally in your browser. No data is uploaded or stored.