Graphical text/file editor written entirely in Perl with the Perl Tk module.The text/file editor provides some advanced features that make it good for writing and debugging Perl and other types of scripts easily.Supports plugins!!
EPIC is an open source Perl IDE for the Eclipse platform. Features supported are syntax highlighting, on the fly syntax check, content assist, perldoc support, source formatter, templating support, regular expression plugin and a Perl debugger.
Borges is an open-source project aimed at XML-aware documentation projects which care about internationalisation, reusable contents, teamwork, etc. Borges is maintained by NeoDoc: http://neodoc.biz
The Squealer is a lightweight IDE intended for fast, efficient development. It is designed to plug in to your favourite text editor (like Textpad) to give the everyday features needed in a modern n-tier J2EE development environment.
Open Perl IDE is a visual, integrated development environment for writing and debugging Perl scripts with any standard Perl distribution under Windows 95/98/NT/2000.
XPHP is an IDE authoring tool for Windows that allows you to design, develop, test, debug and deploy PHP applications. [This project has been discontinued since 2005]