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Text Tools Reverse word order coordinates inside sentences.

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API Response Formatter & Fetch Studio

Format, pretty-print, test live REST API endpoints, inspect HTTP status codes & headers, and generate cURL commands.

Free Online API Response Formatter & REST Client

Paste raw JSON/XML API responses or test live public API endpoints directly in your browser. Format response payloads, inspect HTTP status codes (200 OK, 404, 500), view response headers, auto-repair invalid backend JSON, and export cURL commands.

Ready to format an API response.

What is an API Response Formatter?

An API Response Formatter beautifies raw, un-indented JSON or XML data returned by RESTful web services and backend APIs. It formats complex nested objects, arrays, and headers so software developers can quickly inspect, debug, and document API integrations.

How to use it

  1. Paste raw JSON from your API response into the input area or enter a public API endpoint URL and click 🚀 Send Request.
  2. Click Format Response to beautify, or Minify Payload to compact the JSON string.
  3. Toggle between Response Body and Headers to inspect HTTP response metadata.
  4. Copy the formatted JSON or click Copy cURL to share the request command.

Frequently Asked Questions (FAQ)

Can I send live API requests directly from this tool?

Yes. Enter any CORS-enabled public REST API URL, select the HTTP method (GET, POST, PUT, DELETE), and click Send Request. The tool will fetch the live response and display status codes, execution time, headers, and formatted JSON.

What are standard HTTP Status Codes?

Common status codes include 200 OK (Success), 201 Created (Resource created), 400 Bad Request (Client error), 401 Unauthorized (Auth required), 404 Not Found (Resource missing), and 500 Internal Server Error (Backend crash).

What is a cURL command?

cURL is a command-line tool for transferring data with URLs. Clicking Copy cURL generates a ready-to-run terminal command for your current API request.

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