List of CHM readers and viewers for Windows
CHM readers and viewers
supports viewing CHM files since version 1.9. Sumatra is free, open-source and supports many other formats, like PDF, ePub, MOBI, XPS, DjVu, CBR, CBZ.
is a cross-platform, open-source
CHM viewer. It works on Windows, Mac and Linux.
is a cross-platform,
open-source eBook reader that can also read CHM files.
CHM Reader extension for FireFox
is not a stand-alone application but an extension to FireFox which allows reading
CHM files directly in that browser.
is a commercial CHM reader.
is a commercial, multi-tab CHM reader and editor.
is a commercial CHM viewer.
supports CHM format (among others).
Details of CHM format
CHM stands for Compiled HTML and
is a format introduced by Microsoft to be used by Windows application to provide
CHM document is a collection of HTML pages, compressed and packed as a single
file. Files are compressed with lzx algorithm. CHM document also contains
additional files like pre-build search index, table of contents structure etc.
For the most complete description of the CHM format, you can read
Unofficial HTML Help Specification.
Other eBook formats
A list of mobi format readers.
A list of ePub format readers.
This list was made by Krzysztof Kowalczyk