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UUID Generator

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What This Tool Does

UUID Generator is built for deterministic developer and agent workflows.

Generate UUID v4 and UUID v7 values with bulk output and flexible formatting options.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Programmatic Access

UUID Generator is also callable as a free HTTP JSON API at https://aidevhub.io/api/uuid-generator/ — GET with query parameters or POST with a JSON body, no authentication, CORS enabled, 50 requests/day per IP. Responses return { ok, tool, result, meta }. 

curl -s "https://aidevhub.io/api/uuid-generator/?version=v4&count=3"

Machine-readable contract: /api/tool/uuid-generator.json All API endpoints: /agents/ LLM site index: /llms.txt

Agent Invocation

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/uuid-generator/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/uuid-generator/ GET uuid-generator
POST /api/uuid-generator/ POST uuid-generator

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=uuid-generator&a=...

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: 30 req / 60s, input max 256 KB.

How to Use UUID Generator

  1. 1

    Choose UUID version and output format

    Select UUID v4 for random IDs or UUID v7 for timestamp-ordered IDs. Pick standard, no-dashes, or uppercase format based on your target system.

  2. 2

    Set bulk count

    Enter the number of UUIDs to generate from 1 to 100. Use bulk output when you need pre-generated IDs for fixtures, test data, or batch inserts.

  3. 3

    Generate IDs

    Click 'Generate UUIDs' to produce the list instantly in the output panel. Results are rendered in monospace for clean copy/paste into code, SQL, or configs.

  4. 4

    Copy individual values or all results

    Use row-level copy for a single UUID or 'Copy All' for newline-separated output. A short copied state confirms clipboard success.

Frequently Asked Questions

What is the difference between UUID v4 and UUID v7?
UUID v4 is fully random, while UUID v7 embeds a Unix timestamp plus randomness. v7 values are better for time-ordered inserts and index locality.
Can I generate multiple UUIDs at once?
Yes. Set the bulk count from 1 to 100 and generate a newline-separated list in one click.
Which output formats are supported?
You can output standard UUID format, no-dashes format, or uppercase format depending on your target system requirements.
Is UUID generation private?
Yes. UUIDs are generated client-side in your browser using Web Crypto, and nothing is uploaded.