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CUID Generator

Generate Collision-resistant Unique IDentifiers in different versions.

Options

Generated CUID

About CUIDs

CUID (Collision-resistant Unique IDentifier) is a secure alternative to UUIDs that:

  • CUID v1: Original format with timestamp, random, and counter (25+ chars)
  • CUID v2: Compact 24-character base36 string with high entropy
  • CUID v3: Extended 32-character format with maximum entropy
  • Is collision-resistant and secure
  • Works across different platforms and databases
  • Is URL-safe and doesn't require encoding
  • Has better performance than UUIDs