SitePad Pro is a general-purpose scriptable editor. Features include extensive support for Java including ANT and a visual debugger, projects, code folding (outlining), smart keys (a key pattern that invokes a script), smart indent, code completion, syntax coloring, bookmarks, spell checker, line numbers, finder tool bar with regular expression search and replace, document set toolbar, source code browser, integration with many popular source control systems. SitePad Pro comes with over 700 scripts written in JavaScript.

The script API provided by SitePad Pro includes access to the application, editor, toolbar, breakpoint, bookmark, menu, info panel, list table, tree table, ZIP, FTP, POP3, and SMTP objects. The script API also provides easy access to third party or system objects (e.g., MSXML2.FreeThreadedDOMDocument). You can also access the script API from DHTML pages and dialogs that are running in SitePad Pro.

SitePad Pro includes toolbars, tabbed workspace panel, output panel, and editor panel. The workspace panel includes a help, tool, open windows and project tabs. The tools panel contains all the script tools. The output panel includes a result, build, debug, and find in files tabs. The editor panel includes tabbed editors.

SitePad Pro also includes a built in help system, accessed using the workspace help tab or F1, that lets users easily access existing documentation. Users can build their own help indexes or download additional help indexes from modelworks.com. SitePad Pro comes with the JDK 1.4 help index.

Languages supported by SitePad Pro include Java, JSP, HTML, PHP, Perl, C/C++, SQL, Lisp, Cobol, ASP, CGI, CSS, DTD, JavaScript, VBScript, Python, Velocity, Properties, XHTML, XML, XSD, XSL, and IDL. Additional file types with syntax coloring and other features can be easily added. Windows, Mac and Unix file formats are supported.