🆔 UUID Generator

Generate UUIDs v1 (time-based), v4 (random), or v5 (namespace+name). Bulk generate, validate, and copy.

🔒 Runs entirely in your browser — nothing is sent to any server
Generated UUIDs
Validate a UUID
 

When to use this

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Database record IDsGenerate unique primary keys for database rows without needing an auto-increment counter or central ID server.
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Test data & mock APIsNeed realistic-looking IDs for test fixtures or mock responses? Generate a batch and paste them directly.
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Distributed systemsUUIDs are safe to generate on multiple machines simultaneously — no coordination needed, no collision risk.
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Reproducible IDs (v5)v5 generates the same UUID every time for the same input — useful for deduplication or stable resource identifiers.

Which version?

v4 — Fully random. Best for most uses.
v1 — Based on current time + machine. Sortable but exposes timestamp.
v5 — Deterministic from a namespace + name. Same input = same UUID every time.