Free UUID Generator
Create random UUID v4 values for test records, prototypes, imports, and development workflows.
UUID v4BulkCrypto
Generate one or more UUIDs.
How this tool helps
UUIDs are convenient identifiers when you need values that are unlikely to collide across test data, local prototypes, forms, imports, or temporary records. This generator uses the browser crypto API where available and can create a single value or a small batch for quick copying.
How to use it
- Choose how many UUIDs you need; small batches are easier to review and paste into test fixtures.
- Generate the list and copy either one line or the whole block depending on your workflow.
- Use the values as identifiers, not passwords, because UUIDs are designed for uniqueness rather than account security.
Practical tips
- Keep the hyphenated format when a system expects standard UUID v4 text.
- Do not use a UUID as proof that a user is authorized; treat it as an identifier only.
- For database imports, generate once and keep the list with the sample records so references stay consistent.
FAQ
What version does this create?
It creates random UUID version 4 values using crypto.randomUUID when the browser supports it.
How many can I generate at once?
The page allows 1 to 100 UUIDs so the output remains manageable in the browser.
Are UUIDs secret tokens?
No. They are useful identifiers, but sensitive tokens need purpose-built random secret generation and storage.