ModPlug Tracker is a tracker for Windows developed by Olivier Lapicque. It was initially developed as a plug-in (called Modplugin) for Internet browsers to allow users to listen to music modules (for example, IT, XM, S3M, and MOD) present in some websites. ModPlug Player and ModPlug Tracker later evolved from this plug-in.
ModPlug Tracker's main distinguishing feature is its point-and-click, native Windows user interface. Most trackers, even newer ones such as Renoise and Skale, have interfaces modelled after the elder DOS trackers (especially FastTracker II). Although many old-school musicians who use trackers prefer this kind of old fashioned GUI, newcomers have been attracted to ModPlug Tracker's alternative interface.
ModPlug Tracker makes use of features common to Microsoft Windows programs, such as context menus for effect selection, "tree" views for files, samples, and patterns, and drag-and-drop functionality throughout. It supports both loading and saving of IT (Impulse Tracker), XM (FastTracker Extended Module), MOD and S3M (Soundtracker) files, loads many sample file formats, and has some support for DLS banks and soundfonts.
Due to lack of time, Olivier Lapicque discontinued development of the program. In early 2004, he released the source code under an open license. Consequently, ModPlug Tracker is now being developed actively by a group of trackers/programmers at SourceForge.