[NDN](http://www.ndn.muxe.com/) is the descendent of the classic 90s [[#DOS Navigator]] codebase enhanced and ported to nearly every OS in existence. It is *not open source* but it is [[Freeware]]. # Notability [[NDN - Necromancers DOS Navigator|NDN]] is an active ([[2024-03-19]]) fork of DN using Embacadero [[Delphi]]. This is the fork I tend to keep around and have for many years. There is some issue with NDN's control codes which causes bright backgrounds to instead blink. # OS Support Supported operating systems: - [[DOS]] (original) - [[Windows]] - [[Linux]] - [[MacOS]] - [[OS/2]] - [[Haiku]] - [[Kolibri]] - and [more](http://www.ndn.muxe.com/download/) # Development https://softpanorama.org/OFM/Paradigm/Ofm_03.shtml # Family ## DOS Navigator [DOS Navigator](https://www.ritlabs.com/en/products/dn/) is a file manager for DOS inspired by Norton Commander, but extends far and away beyond what NC ever dreamed of. It was written using [[Pascal|Turbo Pascal]]. DN was later released as open source under the [[BSD License]] 3 Clause license. > DOS Navigator is an influential early implementation of orthodox file manager (OFM). By implementing three additional types of [virtual file systems](https://en.wikipedia.org/wiki/Virtual_file_system "Virtual file system") (VFS): [XTree](https://en.wikipedia.org/wiki/XTree "XTree"), Briefcase and list-based, DN launched a new generation of OFMs. It offers unlimited panels and many new important features, making it one of the most powerful (and complex) OFMs. \- via [Wikipedia](https://en.wikipedia.org/wiki/DOS_Navigator) ## DN OSP The [DN OSP](https://dnosp.com/e_index.php) team took over development of the DN mainline after it was open sourced around 1999 and continued development until 2006. They discontinued the Turbo Pascal version of DN in 2006 in favor of a rewrite in [[Pascal#Virtual Pascal|Virtual Pascal]]. A beta of this "DN2" was last released as a beta two years later. The site says it was last updated in 2018, but I can find no evidence of anything past 2008. Most likely this project died after Virtual Pascal was discontinued. Someone else took these sources and [attempted to port DN2](https://github.com/unxed/dn2l) to Free Pascal in order to get it to compile for linux. ## DN3 In 2018 the son of the original developer started an ill-advised and ill-fated attempt to create a spiritual successor using Electron.js. https://github.com/GrandeMorcego/dos-navigator-3