UUID Generator
Generate random UUID (Universally Unique Identifier) v4 values. Single or bulk generation.
What Is a UUID?
A UUID (Universally Unique Identifier), also called GUID (Globally Unique Identifier), is a 128-bit number used to identify information in computer systems. UUID v4 is randomly generated — the chance of a collision is astronomically small (1 in 2^122).
Common Uses
- Database primary keys
- Session tokens and API keys (use a secure token generator for secrets)
- Distributed system identifiers
- File naming to avoid conflicts