Generate Version 1, 4, and 7 UUIDs for your applications with single and bulk generation options
🔌Generate UUIDs via MCP in VS Code, Claude & AI Assistants→A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. It is designed to be unique across all systems and at all times. UUIDs are commonly used in databases, APIs, and other applications where a unique identifier is required.
GUID (Globally Unique Identifier) is Microsoft's implementation of the UUID standard. For all practical purposes, they are the same.
The probability of a collision (generating the same UUID twice) is extremely low, making them practically unique for most applications.
Version 4 is the most common and is recommended for most use cases. Version 7 is a newer, sortable alternative. Version 1 is useful when you need time-ordered UUIDs, but be aware of the potential privacy concerns.
Format: xxxxxxxx-xxxx-1xxx-xxxx-xxxxxxxxxxxx
Contains: Timestamp + MAC address (or random node)
Pros: Sortable by creation time, guaranteed uniqueness
Cons: May reveal MAC address, privacy concerns
Use case: When you need time-ordered UUIDs and privacy isn't critical
Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
Contains: Cryptographically secure random numbers
Pros: Maximum privacy, no information leakage
Cons: Not sortable, purely random
Use case: Most common choice, best for general purpose use
Format: xxxxxxxx-xxxx-7xxx-xxxx-xxxxxxxxxxxx
Contains: Timestamp + random data
Pros: Sortable, privacy-friendly, modern standard
Cons: Newer standard (2022), limited support
Use case: When you need sortable UUIDs with privacy protection
Version 1 Privacy: May expose your computer's MAC address. We use random node values instead of real MAC addresses for privacy protection.
Version 4 Security: Uses cryptographically secure random number generation for maximum unpredictability.
Version 7 Benefits: Combines the sortability of V1 with the privacy of V4, making it ideal for modern applications.
RFC 4122 Compliance: All generated UUIDs conform to the official UUID standard.
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