Bulk UUID Generator
Generate multiple UUID v4 identifiers at once. Perfect for seeding databases, creating test fixtures, and populating spreadsheets. All generated client-side with cryptographic randomness.
When you need bulk UUIDs
Bulk UUID generation is common for: seeding databases with test data, generating unique identifiers for CSV imports, creating test fixtures for automated testing, populating mock APIs, and assigning IDs to batch-imported records. Generate exactly the number you need and copy them all at once.
Output formats
Copy bulk UUIDs as a newline-separated list (one per line), comma-separated values, or a JSON array. Choose the format that matches your use case — paste directly into SQL INSERT statements, CSV files, or code.
Frequently Asked Questions
How many UUIDs can I generate at once?
This tool generates up to 1000 UUIDs per batch. For larger needs, generate multiple batches. All generation happens instantly in your browser.
Are bulk-generated UUIDs guaranteed unique?
Yes, for all practical purposes. Each UUID is generated independently using the browser's cryptographic random number generator. The probability of any collision is astronomically small.