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UUIDs
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UUIDs
UUID Batch Generator
Generate newline or comma-separated UUID batches, copy all, or download a text file. Large batches use a Web Worker.
UUID Batch Generator Use Cases
- Load tests and fixture files
- Populate spreadsheet columns with unique IDs
- Seed databases with time-ordered v7 keys
- Quick clipboard paste into config or scripts
UUID Batch Generator FAQ
How is this different from the single UUID tool?
This tool is optimized for bulk lists, file download, and comma-separated export. The crypto UUID tool focuses on one ID and ULID decode.
v4 vs v7?
v4 is random. v7 is time-sortable (RFC 9562) — useful for ordered IDs. Both are generated locally.
Why use a worker?
Generating hundreds of thousands of UUIDs can block the UI; the worker keeps scrolling and typing smooth.
Are these cryptographically secure?
They use the same uuid package as common runtimes. For security-critical secrets, follow your threat model and platform guidance.