Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Dr.Explain - Dr.Explain software is a help file authoring tool.
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.
Listary - Listary is a revolutionary search utility for Windows
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.