CUID2 Generator
Generate collision-resistant unique identifiers (CUID2) that are more secure and performant than traditional UUIDs.
CUID2 Generator
Choose your generator type and configure the settings
Standard CUID2 uses the default alphabet (0-9, a-z) and includes timestamp and counter for uniqueness.
CUID2 Benefits
Collision Resistant
Extremely low probability of duplicates
High Performance
Faster generation than UUIDs
Time Sortable
Contains timestamp for ordering
URL Safe
Safe to use in URLs and databases
Compact
Shorter than UUIDs (24 chars vs 36)
Tips
Use prefixed CUID2s for different entity types (user_, post_, etc.)
CUID2s are perfect for database primary keys
Custom alphabets can be used for specific character sets
Shorter lengths are suitable for user-facing IDs