Bulk UUID Generator
Generate up to 100 UUIDs in one click. Copy all or download as .txt for database seeding and test fixtures.
What is bulk UUID generation for?
Bulk UUID generation is the fastest path to a list of unique identifiers when you need many at once — seeding a development database, creating test fixtures for unit tests, building a CSV of placeholder IDs for a load-test, or pre-allocating IDs for a batch job. This page is preset to generate 100 v4 UUIDs in one click; adjust the count to whatever you need. Use Copy All to drop them into your code or SQL, or download as a .txt file (one UUID per line) to import into your tooling. Everything happens in your browser via crypto.getRandomValues() — your IDs stay on your device.
Generated UUIDv4
Generating...
Format
Bulk Generation
Count:
UUID Validator
Recent UUIDs
Generated UUIDs will appear here.
Last 20 UUIDs are kept in history.
Last 20 UUIDs are kept in history.
About bulk UUID generation
Bulk generation is just N independent calls to the v4 generator — every UUID is independent, no batch correlation.
- Each UUID is generated independently via crypto.getRandomValues()
- Output: 36-char standard form, one UUID per line in the .txt download
- No correlation between batch members — no shared seed, no sequence
- For very large batches (1M+) prefer your language's native UUID generator
- Copy All puts the entire list on the clipboard, newline-separated