JavaScript tools are software applications or libraries that help developers write, test, and manage JavaScript code more efficiently. These tools can include code editors like Visual Studio Code, debugging tools like Chrome DevTools, and package managers such as npm that simplify the process of managing libraries and dependencies. Additionally, there are frameworks like React and Angular that provide structured ways to build web applications. These tools enhance productivity by offering features like code completion, error checking, and easy integration with other technologies, making it easier for developers to create dynamic and interactive web experiences.