API Fetch Tester
Test your APIs with this lightweight, browser-based HTTP client. Make requests, inspect responses, and debug your APIs.
Request
Response
Response will appear here...
Why Use Our API Tester?
Lightweight & Fast
No heavy installations required. Test your APIs directly in the browser.
Client-Side Processing
Your API requests never pass through our servers, ensuring complete privacy.
Syntax Highlighting
Beautiful syntax highlighting for JSON responses makes debugging easier.
Response Timing
Measure how long your API requests take to complete.
All HTTP Methods
Supports GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS methods.
Mobile Friendly
Works perfectly on all devices - desktop, tablet, and mobile.
How To Use The API Tester
Enter API Details
Select the HTTP method and enter the full URL of the API endpoint you want to test.
Example: https://api.example.com/data
Add Headers & Body
Add any required headers and provide a JSON body for POST/PUT requests.
Common headers: Content-Type, Authorization, Accept
Send Request
Click the Send button to execute the API request. View the response status and timing.
Features: Response time measurement, status code coloring
Inspect Response
View the formatted JSON response with syntax highlighting for easier debugging.
Feature: Copy response with one click
Frequently Asked Questions
Are there any security concerns with using this tool?
All requests are made directly from your browser to the API endpoint. Your API keys and data never pass through our servers, ensuring maximum security.
Does this tool handle CORS issues?
The tool is subject to the same CORS restrictions as any web application. APIs must include appropriate CORS headers to be accessible from a browser.
What formats are supported for the request body?
Currently, the tool supports JSON request bodies. You can set the Content-Type header to application/json for proper formatting.
Can I save my API requests?
This is a lightweight tool focused on making individual requests. For saving requests and collections, consider dedicated tools like Postman or Insomnia.
What happens if the API returns non-JSON data?
The tool attempts to parse the response as JSON. If that fails, it will display the raw response text instead.