Web Development on Web2Generators

localStorage vs sessionStorage vs Cookies: What Should a Web App Store Where?

Mon, 19 Oct 2026 00:00:00 +0000

A preference toggle remembers the wrong setting. A search filter vanishes after a refresh. An account stays signed in longer than expected. Many of these issues begin with one ordinary development choice: where should the browser keep a piece of data?

Modern web apps routinely use localStorage, sessionStorage, and cookies. They all store browser-related state, but their lifetimes, access rules, and security consequences are different. Choosing the right one improves reliability, simplifies debugging, and reduces accidental exposure of sensitive information.

JSON vs Form Data vs Multipart: Send the Right HTTP Request with cURL

Sun, 18 Oct 2026 00:00:00 +0000

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 &. 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.

This tutorial compares three common request body formats and shows how to construct each with cURL. Along the way, you can use the free Web2Generators cURL command line builder for JSON and literal bodies, and the URL encoder and decoder to inspect form values.