api-request-builder
⌘+↵to send
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Saved
Save a request to build your collection
GET·No URL set
Request Headers
KeyValue
Save Request
Response
No response yet
Enter a URL and click Send (or press ⌘↵)
free tools · most run in your browser · no signupfree developer tools/most run right in your browser/no signup needed
Test REST APIs online: send GET, POST, PUT, PATCH and DELETE requests with headers, auth and a body, inspect the response, and copy the request as cURL, fetch, Axios, Python or PHP.
Save a request to build your collection
Save Request
No response yet
Enter a URL and click Send (or press ⌘↵)
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Open tool →An API Request Builder is an essential tool for developers, QA engineers, and API testers that allows you to construct, send, and analyze HTTP requests to REST APIs without writing code. Our free online REST API testing tool provides a user-friendly interface to interact with APIs, debug responses, and generate code snippets for implementation in your projects.
This HTTP request tester is designed to be intuitive and powerful, making API testing accessible to both beginners and experienced developers. Follow these steps to get started:
Test any RESTful API with full support for GET, POST, PUT, DELETE, PATCH, HEAD, and OPTIONS methods.
Customize headers, query parameters, and request bodies with an intuitive interface.
Secure your API requests with Basic Auth, Bearer Tokens, or API Keys in headers or query parameters.
Requests go straight from your browser; APIs without CORS headers can be reached through the optional server relay. Save requests to reuse them later.
Generate cURL, fetch, Axios, Python and PHP code from your request, or paste a cURL command to import one.
View formatted JSON responses with syntax highlighting for better analysis.
Our API testing tool is perfect for validating RESTful endpoints during development. Test CRUD operations (Create, Read, Update, Delete) to ensure your API behaves as expected before deploying to production.
When integrating with third-party APIs or troubleshooting your own services, our API debugging tool helps you identify and resolve issues quickly by providing detailed response information and error messages.
Use this tool to test and document API endpoints as you build them. The code generation feature makes it easy to create implementation examples for your API documentation.
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Yes. It is free, needs no account and has no limit on requests sent from your browser. The optional "Send via server" mode is limited to 10 requests per minute per visitor.
By default requests go straight from your browser to the API, so the browser enforces CORS: unless the API sends an Access-Control-Allow-Origin header that allows this site, the browser blocks the response. Most public demo APIs allow it; many production and internal APIs do not. Turn on "Send via server" (or click "Retry via our server") to send the request from our server, where CORS does not apply.
In the default mode your request goes directly from your browser to the API and never touches our server. If you turn on "Send via server", the URL, headers (including auth headers) and body pass through our server to reach the API; they are not logged or stored, private and local network addresses are blocked, and requests are capped at 1 MB, 5 MB responses and 30 seconds. Saved requests, including any tokens or passwords in them, are kept only in your browser's local storage.
You can paste a cURL command (for example from Chrome DevTools "Copy as cURL") into the URL bar and the method, URL, headers, body and basic auth are filled in for you. Postman collection import is not supported.
cURL, JavaScript fetch, Axios, Python requests and PHP cURL. The snippets are built from exactly what the Send button sends, including query parameters, authentication and Content-Type headers.
Yes. Send a POST request with a JSON body such as {"query": "{ users { id name } }"} and a Content-Type of application/json.
Complete the OAuth flow with the provider to get an access token, then choose Bearer Token on the Auth tab and paste it in.
Whether you're developing a new API, integrating with third-party services, or debugging existing endpoints, our API Request Builder provides all the tools you need for efficient API testing. With its intuitive interface, comprehensive features, and helpful code generation, you can streamline your API development workflow and ensure your services work flawlessly.
Try our free REST API testing tool now and experience the difference it makes in your development process!