UUID Generator
The UUID Generator produces random (v4) UUIDs that are extremely unlikely to collide. They are ideal as database primary keys, request IDs and placeholders in tests.
Key Features
- Generate many UUIDs at once
- RFC 4122 version 4
- Uppercase or lowercase
- Copy as list or comma-separated
- No network needed
Use Cases
- Create primary keys for new records
- Tag requests and events with unique IDs
- Seed test fixtures with stable-looking identifiers
- Avoid predictable sequential IDs
How to Use
- Choose how many UUIDs you need
- Pick the format options
- Generate
- Copy the list
Practical Tips
- Use v4 for randomness; v1 leaks a timestamp and MAC
- Bulk generate then paste into your schema
- UUIDs are large; use them where uniqueness matters more than size
FAQ
- v4 versus v1?
- v4 is random and privacy-friendly; v1 embeds time and hardware info.
- Can two UUIDs collide?
- The chance is astronomically low for v4.