/crypto local tool
UUID Generator
Create random UUID v4 or sortable UUID v7 identifiers in bulk.
Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.
- Working input
- Browser memory
- Cross-tool handoff
- Session only · 10 min
- URL payload
- Never
- Export
- Explicit action
Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.
Full privacy modelLoading tool...
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How to use
- 01Choose v4, v5 or v7 and configure namespace, name or batch count.
- 02Generate values and inspect version, variant and v7 timestamp evidence.
- 03Copy one value or export the batch as text or CSV.
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FAQ
- Should I use v4 or v7?
- Use v7 for time-ordered database IDs, v4 for random IDs, and v5 when the same namespace and name must reproduce the same identifier.
- Are these UUIDs cryptographically secure?
- Yes. They are generated with crypto.getRandomValues, the secure random source built into your browser.
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