elevio hub - For continuous user education
HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.
List.community - Easy way to browse curated lists on GitHub
Dr.Explain - Dr.Explain software is a help file authoring tool.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
HelpSmith - HelpSmith is a help authoring tool to create CHM HTML help files, manuals, and PDF documents.