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How to view CHM files in Ubuntu?

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13 Answers 13

up vote 37 down vote accepted

chmsee is not anymore available in Ubuntu, because it is no longer maintained. Announcement on the project site:

Stop maintain

ChmSee is not being developed anymore.

I haven't read CHM documents more than a year, new and update IT books are pdfs or epubs, so it's right time to end this chm viewer.

chmsee Install chmsee

alt text

sudo apt-get install chmsee
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Thanks. Note: gives "You don't seem to be running Ubuntu" from Ubuntu 10.04/Chrome. – Olivier Lalonde Oct 20 '10 at 12:30
Unable to locate package chmsee on Ubuntu 14.04 :( – Salman Abbas Apr 12 '14 at 0:13
@borjacampina, HOW to install it in ubutnu 14.04? – shgnInc Apr 26 '14 at 6:15
@shgnInc Download 32-bit or 64-bit deb file depend on arch.. install it using sudo dbpg -i <filename> – Shashi May 2 '14 at 7:27
I has been using chmsee for many time, but is no more mantained... See – Pisu May 8 '14 at 7:36

xChm Viewer Install xchm

Install the xChm Viewer for viewing CHM files:

sudo apt-get install xchm
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apt-cache --names-only search chm

gives several results.

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+1 for helping people to find their own answers. But a more verbose answer, explaining the results would be better. – Javier Rivera Oct 19 '10 at 8:26

Use browser extensions

What could be better than a web-browser to view web-pages?

CHMFox is an excellent CHM file reader. It is much better than all the third party programs that others are suggesting, which are mostly lacking many web-browser capabilities that Firefox and alike have.

I initially suggested the CHM reader extension for Firefox, but it isn't actively maintained anymore.

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There is a new firefox add-on called ChmFox 1.2. Supposed to be a replacement for the old CHM reader project. you can find it at – Julio Jul 21 '11 at 20:33
Cannot install CHM reader, but ChmFox is good. – Pisu May 8 '14 at 7:39

kchmViewer Install kchmviewer

The main advantage of kchmviewer is the best support for non-English languages. Unlike other viewers, kchmviewer in most cases is able to correctly detect the chm file encoding and show it. It correctly shows the index and table of context in Russian, Spanish, Romanian, Korean, Chinese and Arabic help files, and with new search engine is able to search in any chm file no matter what language it is written.


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I like the reader that comes with wine! (hh.exe?)

Open hh.exe that comes with wine and browse for your CHM file from it.

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Also a plugin called CHM Reader exists for Firefox.

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here – hhlp Oct 28 '10 at 17:44

There are a lot of CHM reader, you can find in Software Center, just type chm

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extract_chmLib does a very good job of converitng chm (compiled html) files into htm format. It is in the ubuntu repository in the package libchm-bin
*extract_chmLib* maintains the full functionality of the original.. However, I did need to rename files to lowercase, for one .chm (becaue chm is a Windows format which is not case senseitive like Linux), but the overall result is ideal for me...

Here are a coupld of links...

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I prefer GnoCHM.

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gnochm isn't available in maverick 10.10 – hhlp Oct 19 '10 at 16:02
why gnochm is any more on Ubuntu repository? – neuromancer Apr 7 '11 at 10:19

In Ubuntu Software Center you can do a search for "chm" (no quotes) and find some decent chm viewers.

However, while using them, I'm always missing the scaling features in firefox (to make everything bigger - not just fonts).

Therefore, my favorite CHM viewer is Firefox itself via the ChmFox extension.

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In alternative, since CHM format is not very popular you can convert it to PDF using chm2pdf:

sudo apt-get install chm2pdf
chm2pdf --webpage your.chm

This will produce a your.pdf file. In alternative you can use --book or --continuous options instead of --webpage, more info here

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In addition to the Firefox extension(s), there's a neat Chrome app called Chumium that does the job.

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