"Lite" API Tester
Quickly test your API endpoints directly from the browser.
New to working with APIs? Learn the basics of Endpoints, GET, and POST requests in our guide:What is an API Endpoint?
Got a messy JSON response? Clean it up instantly with ourJSON Toolkit.
Why Use an Online API Tester?
For developers, testing API endpoints is a daily task. Whether you are building a backend in Node.js, connecting to a third-party service like Stripe, or debugging a React frontend, you need to know exactly what data is being sent and received. While heavy desktop applications like Postman are powerful, they can be slow to load and overkill for simple tests.
1. Instant Debugging Without Installation
Our "Lite" API Tester runs entirely in your browser. There is nothing to install, update, or configure. You can instantly verify if a GET request returns the correct JSON, or if your POST request is sending the right payload structure. This speed is crucial for maintaining your "flow state" while coding.
2. Inspect Headers and Status Codes
Sometimes an API fails not because of the body, but because of missing headers (like Authorization tokens) or unexpected status codes (like 401 Unauthorized or 500 Server Error). This tool gives you a clear view of the raw response headers and status codes, allowing you to pinpoint authentication or server-side issues immediately.