Solvvy - Highly intelligent customer support self-service solution via AI/ML/NLP science
Dr.Explain - Dr.Explain software is a help file authoring tool.
Whatfix - Whatfix Enterprise: Enhancing self-service capability of any web product
WinCHM - Creating CHM file, Make CHM file, Web Help. WinCHM Pro - Help authoring software (CHM, WebHelp, DOC, PDF) . With this powerful tool you can not only create chm file from scratch, but also convert a set of existing HTML files to a chm file.
phpMyFAQ - phpMyFAQ is a world’s most popular mobile-friendly, feature-rich and open-sources FAQ software that uses PHP 5.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.