UUID Generator

Generate universally unique identifiers (UUIDs) with customizable formatting options. Perfect for database keys, API tokens, and distributed system identifiers.

UUID Generator

Generate universally unique identifiers (UUIDs) with customizable formatting options. Perfect for database keys, API tokens, and unique identifiers.

Number of UUIDs: 1

1100

UUID Type

Formatting Options

Uppercase letters

Remove dashes

Prefix (optional)

Suffix (optional)

UUID Information

UUID v4 (Random)

128-bit random identifier with very low collision probability

Standard Format

xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

Length

36 characters (with dashes) or 32 characters (without dashes)

Common Use Cases

• Database primary keys

• API request identifiers

• Session tokens

• File naming

• Distributed system identifiers

• Transaction IDs

Format Examples

Standard

f47ac10b-58cc-4372-a567-0e02b2c3d479

Uppercase, No Dashes

F47AC10B58CC4372A5670E02B2C3D479

With Prefix/Suffix

user_f47ac10b-58cc-4372-a567-0e02b2c3d479_id

Tips

• UUIDs are globally unique with extremely low collision probability

• v4 UUIDs are random and don't contain any information about when or where they were generated

• Use prefixes/suffixes to make UUIDs more readable in your application

• Store UUIDs as binary (16 bytes) in databases for better performance