HTML forms are a fundamental feature of web development that allow users to input and submit data to a web server. Forms are created using the <form> element, which can contain a variety of input fields like text boxes, checkboxes, radio buttons, dropdowns, and buttons. These elements enable users to interact with the page and provide information such as login credentials, search queries, or feedback. The data entered into a form is sent to a server for processing when the form is submitted, typically via HTTP methods like GET or POST. Forms are integral to creating dynamic, interactive, and user-friendly web applications.