Bulk UUID Generator — Generate Multiple UUIDs at Once

Need a batch of UUIDs? Generate 10 random v4 UUIDs per click. Each one is cryptographically random and globally unique. Copy the list and paste into your database seed, config file, or test data.

Generate UUIDs in Bulk

1. Open the UUID Generator
2. Click Generate 10
3. Click again for 10 more (they append to the output)
4. Copy the full list

Common Bulk UUID Use Cases

Database Seeding

Populating a development database with test records. Each record needs a unique primary key. Generate 10-50 UUIDs, paste them into your seed SQL or JSON fixtures.

Test Data

Writing integration tests that create multiple entities. Pre-generate UUIDs so your tests are deterministic and you can reference specific IDs in assertions.

Configuration Files

Microservice configs that need unique identifiers for instances, API keys placeholders, or correlation IDs. Generate a batch and assign one per service.

CSV/Spreadsheet ID Columns

Adding unique IDs to spreadsheet rows for data import. Generate the UUIDs, paste into a column, done. Pair with CSV to JSON to convert your spreadsheet to API-ready format.

Scaling Beyond 10

For hundreds or thousands of UUIDs:

• Python: python3 -c "import uuid; [print(uuid.uuid4()) for _ in range(1000)]"
• Linux: for i in $(seq 1000); do uuidgen; done
• JavaScript: Array.from({length:100}, ()=>crypto.randomUUID()).join('\n')

For quick batches of 10-50 during development, the browser tool is faster than writing a script.

Related: Password Generator for random strings, JSON Formatter for structuring data with UUIDs.