https://www.web2generators.com/tags/forms/Recent content in Forms on Web2GeneratorsHugoenSun, 18 Oct 2026 00:00:00 +0000https://www.web2generators.com/blog/json-vs-form-data-vs-multipart-send-the-right-http-request-with-curl/Sun, 18 Oct 2026 00:00:00 +0000https://www.web2generators.com/blog/json-vs-form-data-vs-multipart-send-the-right-http-request-with-curl/<p>Two HTTP requests can use the same URL and method yet produce very different results. One sends a JSON object. Another sends form fields separated by <code>&amp;</code>. A third sends a file upload with a multipart boundary. If the server expects one format and receives another, the application may reject the request or quietly parse the wrong values.</p> <p>This tutorial compares three common request body formats and shows how to construct each with cURL. Along the way, you can use the free <a href="https://www.web2generators.com/tools/http-tools/curl-command-line-builder/">Web2Generators cURL command line builder</a> for JSON and literal bodies, and the <a href="https://www.web2generators.com/tools/http-tools/url-encoder-and-decoder/">URL encoder and decoder</a> to inspect form values.</p>