JSON API Tester — Test JSON APIs Online | Send Web Request

Test JSON APIs online. Send JSON in the request body, receive JSON in the response. Add headers, set Content-Type to application/json, and inspect the response with syntax highlighting. Use Send Web Request for all your JSON API testing.

JSON and REST APIs

Most REST APIs use JSON for request and response bodies. To test them, you need to send valid JSON and read the response. A JSON API tester lets you compose the body, set Content-Type: application/json, and see the parsed response.

Sending JSON

Set the method to POST, PUT, or PATCH. Add the header Content-Type: application/json. Enter your JSON object in the body. Send Web Request validates the JSON as you type and sends it correctly.

Example JSON request

Creating a resource with JSON:

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

{
  "name": "Widget",
  "price": 29.99,
  "inStock": true
}

Reading JSON responses

The response body is shown with syntax highlighting. Expand and collapse nested objects. Copy values for debugging. For large responses, the formatted view makes it easy to find what you need.

Test your JSON API

Open Send Web Request to test JSON APIs. Free and instant.

Try it now

Open Send Web Request to test APIs in your browser. No signup, no installation, no account required. Just send.

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