Bulk UUID Generator for Testing
When writing tests, seeding databases, or building fixtures, you often need hundreds or thousands of unique IDs. Generating them one by one is slow. A bulk UUID generator creates many UUIDs at once and lets you export them in the format you need.
Use Cases
- Unit and integration tests: Populate in-memory stores or test DBs with unique IDs without collisions.
- Seed data: Generate IDs for users, orders, or entities in development or staging.
- Fixtures: JSON, CSV, or SQL files with pre-generated UUIDs for consistent test runs.
- Load testing: Large sets of IDs for simulating many entities.
Our Bulk Tool
Our bulk generator runs in your browser. You choose the UUID version (v1, v4, or v7) and how many to generate (up to 10,000). Generation is client-side and fast. You can then download the result as:
- JSON — a single array of UUID strings, ideal for configs and API payloads.
- CSV — one UUID per row, easy to import into spreadsheets or data pipelines.
- SQL —
INSERT INTO table (id) VALUES (...)statements, ready to run in your DB.
API for Bulk
For scripts or CI, use our API. For example, GET /api/version4/500 with Accept: application/json returns 500 v4 UUIDs in one request (up to 1000 per call). Add a User-Agent header as required.
Summary
Use a bulk UUID generator when you need many unique IDs for testing, seeding, or fixtures. Our tool supports v1, v4, and v7 and exports to JSON, CSV, and SQL. For single UUIDs, use our main generator; to validate existing UUIDs, use our validator.