UUID Generator
Generate UUID v1, v4 and v5 online for free. Create random universally unique identifiers instantly.
このツールについて
Generate UUIDs (Universally Unique Identifiers) in v1, v4, and v5 formats. All generation is done locally in your browser.
使い方
Select Version
Choose UUID version (v1 time-based, v4 random, v5 name-based).
Generate
Click Generate to create one or more UUIDs.
Copy
Copy UUIDs to use in your application.
活用シーン
Database IDs
Generate unique IDs for database records and distributed systems.
よくある質問
Are UUIDs truly unique?
UUID v4 has 122 bits of randomness, making collisions astronomically unlikely.