Any text editor such as Notepad++ or Bluefish can be used to write HTML and JavaScript code. In Windows, Notepad can also be used to create a simple HTML file and CSS and JavaScript code can be embedded inside it, which can then be opened in a web browser.

The good news is that almost every web browser comes with a built-in HTML and JavaScript Interpreter that compiles the code and executes it within the web browser host environment during run-time.

PHP files can be written in any of the editors used for writing HTML, CSS, or JavaScript. For linking the form to the server, the Wamp server is used in Windows and phpMyAdmin tool is used for MySQL databases.