The Code Checker Tool is an intuitive and user-friendly platform designed to be used by developers in testing and debugging their HTML, CSS, and JavaScript code. It allows users to write and execute code in real time, providing instant feedback in the form of a live preview. Whether you’re a beginner learning web development or an experienced developer testing new code snippets, the Code Checker Tool is an invaluable resource for streamlining the coding process.

This tool has specific sections for each language: HTML, CSS, and JavaScript. Users can then work on their projects in separate environments. Each section has differently colored backgrounds and color schemes that make navigation easier and more appealing between different languages. One feature allows users to preview real-time effects of code changes, thereby making the learning process more interactive.

Additionally, the Code Checker Tool also supports syntax highlighting for every language, hence easier identifying errors or bugs. It also contains an option to run the code and display the output in an iframe-separated window, thus a full, live coding environment.

This is a must-have tool for anyone looking to hone their coding skills or test web development projects in a seamless testing and debugging experience.