XPI extensions allow you to create your own. Available on Windows, Mac OS X and Linux. Komodo Edit 4.2 is a free, multi-platform, multi-language editor for dynamic languages and Ajax technology, including Perl, PHP, Python, Ruby and Tcl plus support for browser-side code including JavaScript, CSS, HTML and XML.Background syntax checking and syntax coloring catch errors immediately, while autocomplete and calltips guide you as you write.
Background syntax checking and syntax coloring catch errors immediately. Komodo Edit from ActiveState is a free, open source, multi-platform, multi-language editor (PHP, Python, Ruby, Perl and Tcl, JavaScript, CSS, HTML and template languages like RHTML, Template-Toolkit, HTML-Smarty and Django).