Headers
How to use
- Enter the API endpoint URL you want to test.
- Select the HTTP method (GET, POST, PUT, DELETE, etc.).
- If necessary, enter the required headers, parameters, or body content for the request.
- Click 'Send Request' to test the API.
- View the response status, body, and headers to analyze the result.
Why use this tool?
completely free, forever
No sign-up required, no watermarks, and no daily limits.
Supports Multiple HTTP Methods
Test APIs with GET, POST, PUT, DELETE, and other HTTP methods.
Customizable Requests
Add custom headers, query parameters, and request bodies to your API tests.
Instant Response Feedback
Get immediate results with response status, body, and headers displayed.
All Devices Supported
Works on Windows, Mac, iPhone, iPad, and Android devices.
Frequently asked questions
Is the API Tester free?▼
Yes, the API Tester tool is completely free to use. No account required, and no watermarks on your API requests.
What HTTP methods can I use?▼
You can use GET, POST, PUT, DELETE, and other HTTP methods to test your APIs.
How do I send a request?▼
Enter the API URL, select the HTTP method, input any necessary headers or parameters, and click 'Send Request' to execute the test.
Can I customize the request body?▼
Yes, you can provide custom body content for POST, PUT, and other methods that require request data.
What information will I see in the response?▼
The tool displays the response status code, body content, and headers, so you can analyze your API's output.
Is my data secure when testing APIs?▼
Yes, your data is processed securely, and we do not store or track any API requests or responses.
Which devices are supported?▼
Our tool works on all devices including Windows, Mac, iPhone, iPad, and Android devices.
About API Tester
Test REST APIs This free online tool runs entirely in your browser — no files are ever uploaded to our servers, ensuring your data stays private and secure. No registration, no watermarks, no limits.
Free forever
No hidden fees or paywalls
Zero uploads
100% browser-based processing
No account needed
Start using immediately