Build and test HTTP API requests online. Visual request builder with custom headers, body, and authentication. Test REST APIs without installing Postman.
The API Request Builder on httpstatus.com provides a visual interface for composing HTTP requests without writing code or memorizing cURL flags. Select the method, enter the URL, add headers and query parameters through dedicated input fields, and attach a JSON, form-data, or raw body. Execute the request and inspect the full response including status code, timing, headers, and formatted body. You can save request collections in local storage for quick replay during iterative development.
Full-stack developers prototyping new endpoints, QA engineers scripting manual regression tests, and technical writers capturing request-response pairs for documentation all benefit from a structured request-building workflow. Unlike heavy desktop clients, this tool loads instantly in any modern browser with zero installation. Sensitive data stays in your browser session and is never persisted remotely. It connects naturally to the cURL to Code converter and Header Inspector on httpstatus.com.