UUID Generator

Generate UUID v4, UUID v7, and Nil UUID values with bulk generation support.

Version

V4

Count

1

Generated UUIDs

—

Version

Options

Generated UUIDs

🆔

Click "Generate" to create UUIDs

UUID Validator

UUID Versions Explained

UUID v4

122 bits of random data. Most widely used. No ordering guarantee. Ideal for distributed systems that need uniqueness without coordination.

UUID v7

48-bit Unix timestamp in milliseconds plus 74 random bits. Time-ordered and sortable. Great for database primary keys with better index locality than v4.

Nil UUID

All zeros. Useful as a placeholder or sentinel value to represent no UUID or an empty state.

Features:

  • UUID v4 random generation
  • UUID v7 timestamp-based generation
  • Nil UUID generation
  • Bulk generation from 1 to 1000 UUIDs
  • Quick count presets
  • Lowercase and uppercase formatting
  • Four output formats
  • Copy individual or all UUIDs
  • Download output as a .txt file
  • UUID validator with version and variant detection
  • Timestamp extraction from UUID v7
  • All processing happens client-side