JsonifyTools

    API Tester

    Lightweight REST client for testing APIs

    ParameterValue

    Enter a URL and click Send to make a request

    What is an API Tester?

    An API Tester is an essential developer tool used to test, debug, and validate REST APIs. It allows developers to send HTTP requests like GET, POST, PUT, and DELETE and inspect responses including status codes, headers, and response body.

    How to Test an API Online Using This Tool

    Our free online API testing tool is simple and fast. Below are common examples developers use daily.

    Example 1: GET Request

    GET https://api.example.com/users

    Example 2: POST Request with JSON Body

    POST https://api.example.com/users
Content-Type: application/json

{
  "name": "John",
  "role": "Developer"
}

    Example 3: Custom Headers

    Authorization: Bearer YOUR_TOKEN
X-App-Version: 1.0.0