[4] Komodo IDE uses the Mozilla and Scintilla code base, and supports many of the same features, languages and platforms, including the languages Python, Perl, PHP, Ruby, Tcl, SQL, Smarty, CSS, HTML and XML, and the operating systems Linux, OS X, and Windows.

Much of the code base is shared, although more advanced features are reserved for Komodo IDE such as debugging and unit testing.

Komodo plug-ins are based on Mozilla Add-ons and extensions can be searched for, downloaded, configured, installed and updated from within the application.

Available extensions include a Document Object Model (DOM) inspector, pipe features, additional language support and user interface enhancements.

[5] Independent implementations of some of these features, such as the database editor, git support, and remote FTP file access, are available in the free version via Komodo Edit's plugin system.