Code is generally written in text format, and you can easily edit or modify your code using text editors like Notepad, etc. For a developer, beginner or professional, however, a good C++ IDE is really important because of powerful tailored features like error highlights, auto code completion, and help system which help with the process of writing the code plus the opportunity to run, test, debug, deploy, merge or transform code to run on other platforms (multiplatform coding) are also important.