Batch
Generate 1000 UUIDs
A thousand identifiers is the standard bulk unit — enough to fill a real table and small enough to generate instantly.
1000 per clickAny version (v1–v8)Export .txt / .csv
Generated locally with the Web Crypto API — nothing leaves your browser.
About This Batch
- This page is the batch generator preset to 1000. A thousand rows is the conventional 'bulk' figure, and at this size an export file is the only sane way to consume the result.
How to generate
- Pick a version and any formatting (uppercase, hyphens, braces).
- Leave how many at 1000 — or change it, up to 10,000.
- Press Generate, then Copy all or Download.
Use Cases
- Seeding a development or staging database.
- Generating identifiers for a migration rehearsal.
- Producing fixture data for a load test.
Code Examples
JavaScript
const ids = Array.from({ length: 1000 }, () => crypto.randomUUID());Python
import uuid
ids = [str(uuid.uuid4()) for _ in range(1000)]PostgreSQL
SELECT gen_random_uuid() FROM generate_series(1, 1000);Frequently Asked Questions
How fast is 1,000 UUIDs?
Around one to three milliseconds in a modern browser — the batch shares one entropy pool.
Can I go beyond 1,000?
Yes, up to 10,000 per click on this tool. This page only presets the count.
Is a .csv with 1,000 rows safe to open in Excel?
Yes. Excel handles a million rows, and the file is plain UTF-8 text.