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ExtendsClass

ExtendsClass offers a free, browser-based REST API client for testing and debugging HTTP requests. · ExtendsClass · DevOps & CI

Official pricing Docs Report outdated info

Overview

ExtendsClass provides a free, web-based REST client ideal for quickly testing and debugging APIs without registration or installation.

Good fit

Use when you need a quick, browser-based tool to test or debug REST APIs without installing software.

  • students
  • developers
  • QA testers
  • API learners

Not a fit

Avoid if you require advanced automation, team collaboration, or persistent request history for complex workflows.

  • need team features
  • require automation
  • need persistent history
Quickstart · 4 steps
  1. Go to https://extendsclass.com/rest-client-online.html.
  2. Enter your API endpoint URL.
  3. Select HTTP method (GET, POST, etc.) and set headers or body as needed.
  4. Click 'Send' to execute the request and view the response.

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