UUID Generator

API

Free API for generating UUIDs (v1, v3, v4, v5)

Overview

The UUID Generator API provides RESTful endpoints to generate UUIDs of versions 1 (time-based), v3 (name-MD5), v4 (random), and v5 (name-SHA1). Responses are JSON-formatted, containing the generated UUID string and optional metadata like timestamp (v1) or namespace (named versions). Ideal for test data creation, assigning unique IDs to app entities (users, orders), database records, or distributed system components needing decentralized unique identifiers.

Example Integration (JavaScript)

script.js JS


fetch('https://www.uuidtools.com/docs')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful
JSON support
Multiple UUID versions (v1/v3/v4/v5)
No authentication required
Fast response times

Frequently Asked Questions

? Is UUID Generator free to use?

Yes, the API offers free access for generating UUIDs; check official docs for any premium tiers if available.

? Does it require an API Key?

No, the UUID Generator API does not require authentication or an API key for basic usage.

? What is the response format?

All responses are in JSON format, including the generated UUID string and relevant metadata like version or timestamp (for time-based UUIDs).

Top Alternatives

Random.org UUID API Search Google

APILayer UUID Generator Search Google

Tool Info

Pricing Free

Category Test Data

Platform Public API

Pros

⊕ Easy to integrate
⊕ Supports all major UUID versions
⊕ No API key needed
⊕ Lightweight JSON responses

Cons

⊖ No SLA for production use
⊖ Limited advanced customization
⊖ Potential rate limits for high-volume requests