# UUID v4 Generator

URL: https://phishdestroy.io/developer-tools/uuid-generator
Category: General dev
Where it runs: Runs locally (nothing you enter is uploaded)

Generate up to 1000 random version 4 UUIDs at once with the browser's cryptographic random generator, in standard, no-hyphen, uppercase or URN format.

## Example input

Default settings

```
Count 10, Standard format
```

Gives ten UUIDs such as 3b241101-e2bb-4255-8caf-4136c566a962: the third group always starts with 4 (the version) and the fourth with 8, 9, a or b (the variant).

## FAQ

### How unique are these UUIDs?

Each has 122 random bits from crypto.getRandomValues, so a collision is practically impossible even across billions of IDs. The other 6 bits are fixed: the version digit 4 and the variant bits.

### Can I use a UUID as a secret or sort by it?

A v4 UUID is random, but it is meant as an identifier and often ends up in logs and URLs; for secrets, API Key & Token Generator lets you choose the length and alphabet. These UUIDs are not time-ordered; ULID Generator makes sortable IDs.

### Are the UUIDs stored or sent anywhere?

No. They are generated in your browser, not uploaded and not recorded.

## Related tools

- [Bulk UUID v4 Generator](https://phishdestroy.io/developer-tools/bulk-uuid-generator)
- [ULID Generator](https://phishdestroy.io/developer-tools/ulid-generator)
- [API Key & Token Generator](https://phishdestroy.io/developer-tools/api-token-generator)
- [Password Generator](https://phishdestroy.io/developer-tools/password-generator)
- [Text Hash Generator](https://phishdestroy.io/developer-tools/hash-generator)

All tools: https://phishdestroy.io/developer-tools