UUID Generator
Generate RFC4122 compliant UUIDs (Universally Unique Identifiers). Create version 4 (random) and version 1 (timestamp) UUIDs instantly.
xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. The term GUID (Globally Unique Identifier) is also used, typically in Microsoft systems.
Version 4 (Random): Generated using random numbers. The most common type, with 2^122 possible combinations making collisions extremely unlikely.
Version 1 (Timestamp): Generated using the current time and MAC address. Provides chronological ordering but may reveal system information.
How It Works
- Select your UUID version: v4 (Random) or v1 (Timestamp)
- Choose your output format: Standard, UPPERCASE, No Dashes, or with Braces
- Click "Generate" to create a new UUID instantly
- For bulk generation, enter the count and click "Generate List"
- Copy individual UUIDs or all generated UUIDs at once
Frequently Asked Questions
What is a UUID?
UUID stands for Universally Unique Identifier. It's a 128-bit number used to uniquely identify information in computer systems. The probability of generating duplicate UUIDs is so low that it's practically impossible.
Is this tool free to use?
Yes, ApexSofteck Tools's UUID Generator is completely free. Generate unlimited UUIDs without any registration required.
Which UUID version should I use?
Version 4 (Random) is recommended for most use cases as it provides the best privacy and randomness. Version 1 (Timestamp) is useful when you need chronological ordering of UUIDs.
Are generated UUIDs secure?
UUIDs are generated using cryptographically secure random number generation in your browser. They are unique identifiers, not secrets, but are safe for use as public identifiers in databases, APIs, and applications.
Can I generate multiple UUIDs at once?
Yes! Use the Bulk Generate feature to create up to 100 UUIDs at once. You can copy all of them to your clipboard with the "Copy All" button.