UUID Generator
Generate secure UUID v4 / GUID values instantly.
Include Hyphens
Keep the standard UUID format with dashes.
Generated
0 UUIDs
Format
Standard UUID with hyphens
Generated UUIDs
UUIDs are generated locally in your browser using secure random values.
Changes update instantly
Examples
Input
Generate 1 UUID
Output
550e8400-e29b-41d4-a716-446655440000
Input
Generate 3 UUIDs without hyphens
Output
550e8400e29b41d4a716446655440000 9b2c5d0c0ef14d03a6f2c4a1a4f9d8b7 7d6f4fd381e54c4ba3aef80f28e42f13
About this tool
Use this UUID generator to create UUID v4 values directly in your browser. It is useful for database records, API payloads, testing, identifiers, and any workflow that needs unique random IDs. UUID and GUID refer to the same format — this tool works for both.
How to use
- Choose how many UUIDs you want to generate.
- Decide whether you want the standard hyphenated format.
- Generate the UUIDs and copy the result.
What a UUID generator is used for
A UUID generator creates unique identifiers that are commonly used in databases, APIs, distributed systems, test data, and application records. UUID v4 values are random and help reduce the chance of collisions.
This online UUID generator is useful when you need one ID quickly or a short batch of UUIDs without opening a terminal or writing custom code.
UUID and GUID — the same thing
UUID stands for Universally Unique Identifier. GUID stands for Globally Unique Identifier. They refer to the same 128-bit format and are interchangeable in practice. Microsoft popularised the term GUID, while the broader software industry uses UUID.
If you are looking for a GUID generator, this tool produces the same output. A generated value like 550e8400-e29b-41d4-a716-446655440000 is both a valid UUID and a valid GUID.
Standard or hyphenless UUID format
The standard UUID format includes hyphens and is the most common choice for APIs, logs, and stored identifiers. Some workflows prefer a continuous 32-character string without hyphens, and this tool supports both.
FAQ
What is a UUID v4?
UUID v4 is a randomly generated universally unique identifier commonly used to label records, requests, and objects in software systems.
Are these UUIDs generated locally?
Yes. The UUIDs are generated in your browser using secure random values, so the tool does not need to send them elsewhere to create them.
Can I generate UUIDs without hyphens?
Yes. You can switch to a hyphenless format if your workflow expects a continuous 32-character value.
Is this also a GUID generator?
Yes. UUID and GUID are the same 128-bit format. GUID is the term used by Microsoft and Windows, while UUID is the broader industry standard. The values this tool generates are valid as both UUIDs and GUIDs.
What is the difference between UUID and GUID?
There is no practical difference. GUID is Microsoft's name for the same format defined by the UUID standard. Both are 32 hexadecimal characters displayed in five groups separated by hyphens.
Can I generate multiple UUIDs at once?
Yes. You can generate up to 50 UUIDs in one go. Each value is independently random and unique.
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