UUID.NOW

Easily generate Empty UUID (all zeros), Version 4 Random UUID, or V7 Time-Based UUID in one click. Perfect for developers, QA testers, or anyone who needs unique identifiers without hassle.

Frequently Asked Questions

What makes uuid.now special?

uuid.now is easy to remember and lets you generate UUID quickly on a single, no-frills page. You get the UUID you need without any extra steps.

How does the v4 UUID generator work?

The Version 4 UUID generator on uuid.now uses your browser’s Crypto API to create secure and random identifiers. Each UUID is unique and reliable, boosting the security of your applications.

When should I use Time-Based UUID (V7)?

Time-Based UUID (V7) is the latest UUID standard that combines timestamp data with random bits. They're perfect for:

  • Database indexing and sorting by creation time
  • Distributed systems requiring chronological ordering
  • Modern applications needing both uniqueness and time-based sorting

V7 UUIDs are backward compatible while offering improved timestamp precision and better database performance.

What is UUID V7 and why should I use it?

UUID V7 is the newest UUID standard that offers several advantages:

  • Millisecond-precision timestamps for accurate time ordering
  • Better database performance due to monotonically increasing values
  • Improved compatibility with modern database systems
  • Perfect balance between randomness and time-based ordering

It's recommended for new applications where chronological sorting is important.

When should I use Time-Based UUID?

Time-Based UUID include timestamp data, making them perfect for database indexing. They allow faster searching and sorting of records by creation time, improving overall database performance.

How do I copy a UUID?

Copying a UUID on uuid.now is simple:

  • Click the “Copy” button below any generated UUID
  • Or highlight the UUID directly and use your system’s copy command (e.g., Ctrl/Cmd + C)

Either way, it goes straight to your clipboard—ready to use in your projects.