Developer Tools are software applications that help programmers and web developers create, debug, and optimize their code. These tools provide features like code editors, debuggers, and performance analyzers, making it easier to build and maintain software projects. They are essential for ensuring that applications run smoothly and efficiently. Many modern web browsers, such as Google Chrome and Mozilla Firefox, come with built-in Developer Tools. These tools allow developers to inspect HTML and CSS, monitor network activity, and test JavaScript code directly within the browser. This functionality helps streamline the development process and improve the overall user experience.