Web forms are online tools that allow users to input and submit information through a website. They typically consist of fields like text boxes, checkboxes, and dropdown menus, enabling users to provide data such as names, email addresses, and preferences. Web forms are commonly used for tasks like signing up for newsletters, placing orders, or providing feedback. When a user fills out a web form and clicks the submit button, the information is sent to a server for processing. This data can then be stored in a database or used to trigger actions, such as sending a confirmation email or updating a user profile in a system like CRM software.