Quanta Plus is an open source web development tool for designing and managing websites and web applications. It is a free, powerful and cross-platform integrated development environment (IDE) for HTML, JavaScript, CSS, XML, and PHP. It has a modern, intuitive user interface that is designed for both novice and advanced users. Quanta Plus features a sophisticated WYSIWYG HTML/XML editor, a powerful script editor with syntax highlighting, a project manager, and a built-in FTP client for managing multiple remote servers. It also has an integrated source code debugger for debugging JavaScript, PHP, and HTML. Furthermore, Quanta Plus has an integrated browser that allows you to test your projects in multiple browsers simultaneously. Additionally, it offers an integrated spell-checker, an auto-completion feature for HTML tags and attributes, and a wide range of tools for optimizing your webpages. With its powerful and intuitive tools, Quanta Plus is a great choice for designing and managing websites and web applications.
Discontinued The project seems to be discontinued. The last stable version, 0.7.10, was released in 2007 and the last development version, 0.8b3, in 2010, but the program can still be downloaded from the official website.