Free Online UUID/GUID
Generate universally unique identifiers (UUID) version 4, the most widely used standard for database IDs, API keys or session identifiers. Generate up to 100 at once and choose from 6 output formats: normal, uppercase, no dashes, no dashes uppercase, wrapped in braces, or braces uppercase.
💡 Advantages of using UUID/GUID
- • Generate up to 100 UUID v4s at once
- • 6 output formats: with/without dashes, uppercase, braces
- • Copy a single UUID or all of them with one click
- • Generated in your browser — nothing is sent to a server
- • Free, no usage limit
🆔 UUID/GUID
Generate unique identifiers in multiple formats
🆔 UUID/GUID Generator
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⚡ Cómo usar en 3 pasos
- 1
Set the quantity
Choose how many UUIDs to generate, up to 100.
- 2
Choose the format
Select one of the 6 available output formats.
- 3
Generate and copy
Copy a single UUID or all of them with one click.
Frequently Asked Questions about UUID/GUID
What UUID version does this tool generate?▼
UUID version 4, generated from random numbers, the most widely used standard for unique identifiers in databases and APIs.
Can I generate several UUIDs at once?▼
Yes, you can generate up to 100 UUIDs in one go and copy them all together.
What output formats are available?▼
Normal (with dashes), uppercase, no dashes, no dashes uppercase, wrapped in braces {}, and braces uppercase.
Can two generated UUIDs be the same?▼
It's mathematically extremely unlikely: a UUID v4 has 2^122 possible combinations, so the chance of a collision is practically zero.
Is UUID/GUID free?▼
Yes, UUID/GUID from WebTools is 100% free. No registration or subscription required. You can use it as many times as you need at no cost.
Is it safe to use UUID/GUID online?▼
Yes, all information is processed directly in your browser. We do not store or send your data to any external server.
Does UUID/GUID work on mobile?▼
Yes, the tool is fully responsive and works on any device: phone, tablet or computer with a modern browser.