UUID Generator
Generate random UUID v4 (GUID) instantly. Click to generate, copy with one click. No signup.
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What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. UUID v4 generates random identifiers with 122 random bits, making collisions practically impossible.
Common Use Cases
- Database Primary Keys — Unique IDs without auto-increment
- API Request IDs — Track requests across distributed systems
- File Names — Prevent naming conflicts in upload systems
- Session Tokens — Random, non-guessable identifiers
FAQ
How likely is a UUID collision? Generating 1 billion UUIDs per second for 100 years would give you a 50% chance of one collision. For all practical purposes, each UUID is unique.
Is this tool free? Yes. Completely free, no limits, no registration.
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