Notepad++ is a popular choice for editing HTML, CSS, and HTML5 due to its user-friendly interface and versatility. While it is effective for various file types, some users recommend exploring alternatives like Visual Web Developer, WebMatrix, Visual Studio for Web Express, and Google Web Designer for more advanced web programming capabilities, including ASP.NET and PHP. Brackets is noted for its superior HTML editing features, but Notepad++ remains preferred for editing flat files. Sublime Text is highlighted as a widely used editor among web programmers for its support of multiple languages, including JavaScript and Python. It offers a free trial, with a purchase option available afterward. Ultimately, the choice of editor depends on individual comfort and specific project needs.