Chmox is a free (of charge), open source application for OS X which lets you read Windows Help Files (CHM files).
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac

iChm for Mac, iPhone/iPod Touch [for Mac:
- Fully built with Cocoa. No ugly window and slow rendering.
- Tab browsing
- Search. Result sorted by relevance.
- Text encoding detecting/switching
- Find in the page
- Tag powered bookmark
- Index
- Back/Forward
- Text zoom
- Export to.
Cost / License
- Free
- Proprietary
Platforms
- Mac


GnoCHM is a CHM file viewer. It is designed to integrate nicely with Gnome.
It uses PyCHM, a Python package that exports the CHMLIB API. Features are:
- Support for external ms-its links
- Full text search support
- Bookmarks
- Configurable support for HTTP lin.
Cost / License
- Free
- Open Source
Platforms
- Linux

HelpScribble is a full-featured help authoring tool for easily creating professional Windows help files from start to finish.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
Doc-O-Matic is a software source code documentation and Help authoring tool. It takes source code and comments, adds conceptual topics and external input and produces documentation from it. With its single-source approach it generates many different kinds of output from a single...
Cost / License
- Paid
- Proprietary
Platforms
- Windows
- Microsoft Visual Studio






















