Save a request to build your collection
Save Request
No response yet
Enter a URL and click Send (or press ⌘↵)
Build custom API calls and view responses instantly.
Save a request to build your collection
Save Request
No response yet
Enter a URL and click Send (or press ⌘↵)
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.
Save and reuse your API requests to streamline your testing workflow.
Automatically generate implementation code in multiple programming languages.
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.
Enhance your API development skills with these comprehensive guides and tutorials:
Master API data fetching with React Query useQuery, useMutation, and devtools.
Build full-stack React applications with proper API integration and testing.
Modern frontend development techniques including API design and testing strategies.
Clean coding practices for JavaScript including proper API error handling.
Yes, our online API tester is completely free to use with no limitations on the number of requests or features.
Yes, all requests are made directly from your browser to the API endpoint. We don't store, process, or have access to your API data or authentication credentials.
While primarily designed for REST APIs, you can test GraphQL endpoints by sending POST requests with appropriate query payloads in the request body.
For OAuth-authenticated APIs, you can use the Bearer Token authentication option with your access token after completing the OAuth flow through the service provider.
Currently, direct import of Postman collections is not supported, but you can manually recreate your requests using our intuitive interface.
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!