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UUID Generator

UUID Generator

UUID Generator supports batch generation of UUID v1 and v4 values with configurable casing, hyphens, and quantity for database keys, API tokens, and tracing IDs.

UUID Version

Count

1 UUID

Format Options

Uppercase letters

Include dashes
UUID Generator

Quick Start

1
Choose version: prefer v4 (random); consider v1 only when approximate time ordering is needed
2
Set count: drag the slider to choose 1–100
3
Format: toggle uppercase/dashes for readability or compact form
4
Generate & export: click Generate, then Copy All or Download .txt

Common Scenarios

Database primary keys and distributed unique IDs

API idempotency keys and duplicate prevention

Logging/events/trace IDs

Extended workflow

random uuid generator, bulk uuid generator, and batch uuid creator can be handled in the same review flow, so you can verify results before copying or exporting.

Version & Format Parameters

v1: time semantics + node identifier; roughly sortable by time
v4: strong randomness; suitable for most scenarios
Presentation: case and dashes only affect display/storage; comparisons are case‑insensitive

Usage Advice

General recommendation: prefer v4 in production to avoid time semantics
Storage convention: database fields use lowercase without dashes; logs/display use lowercase with dashes
Idempotency & tracing: use v4 for idempotency keys and tracing; standardize the string format
Batch imports: pre‑generate and verify a list for migrations/initialization

Limitations & Compatibility

Batch limit: up to 100 per generation
Version support: currently v1 and v4
Cross‑language differences: serialization may vary (case/dashes); standardize within your team

Privacy & Security

All processing happens locally in your browser. You can replace, clear, and re-run the current content at any time.
Privacy note: v1 uses a random node identifier, not a real MAC

FAQ

5

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