UUID Bulk Generator

When you need to populate a database with test records, seed fixtures for a test suite, or generate a large set of unique identifiers, generating UUIDs one at a time is tedious. This tool creates batches of up to 1,000 UUID v4 identifiers in a single click, with formatting options to suit your specific needs.

Batch generation for testing

Software testing often requires large datasets. You might need 100 user IDs for a load test, 500 order IDs for stress testing an API, or 1,000 product codes for testing a bulk import feature. This tool generates them all instantly, with options to format them as needed. Copy the entire list and paste into your test data, database seeding script, or fixture file.

Format control

Bythe default, UUIDs include hyphens in the standard format (550e8400-e29b-41d4-a716-446655440000), but some systems need UUIDs without hyphens. The tool lets you toggle hyphens off to get compact 32-character strings. You can also choose between lowercase and uppercase—useful when importing into systems with specific formatting requirements.

Efficiency at scale

Generating 1,000 UUIDs server-side and fetching them over the network is wasteful. Since UUID v4 generation requires only cryptographic randomness (no server state), it's perfect to do locally in your browser. All 1,000 IDs are generated in milliseconds, and you can copy them all to your clipboard with a single click.

Database seeding

Populating development and testing databases with realistic data is essential for quality assurance. This tool handles the ID generation part, leaving you free to focus on the data itself. Generate your IDs, then insert them alongside realistic product names, user emails, or other test data.