xCHM is a cross-platform application used to view and manage help files in the Compiled HTML Help (CHM) format. It features a tabbed interface for easily navigating between documents and a powerful search engine for finding information quickly. The application also includes a table of contents tree view, a context-sensitive help viewer, and a full-text search feature. In addition, xCHM offers support for multiple languages, including English, Spanish, French, German, Italian, and more. The application is available for both Windows and macOS systems, and is distributed under the GNU General Public License (GPL).
Kchmviewer
ChmFox
Read CHM
Clearview
CHM Reader Pro
Microsoft HTML Help
ExtraCHM
CHMPane
chmviewkit
Chmox
CHM Decoder
WinCHM
ChmSee
iChm
GnoCHM
Discontinued The latest version, 0.3, released in February 2005, can still be downloaded from the official website.