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MHz is a reader that will open .chm (Microsoft Compiled HTML Help) files, a format in which many many help files are supplied.


  • Multi-documents, read multi chm files at one time.
  • Customize whatever font you like.
  • Add bookmarks, manage bookmarks, delete bookmarks.
  • Search in the whole chm file, and highlight the searching pattern.

What's New

Version 1.0: Release notes were unavailable when this listing was updated.


Mac OS X 10.6 or later

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MHz User Discussion

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jameskatt Member IconReview+2

Has potential.

But compared to iCHM:

1. Can't print. This limits the ability to convert CHM to PDF (which is useful for reading on the iPad.

2. Can't automatically convert to PDF.

3. Hangs on large CHM files.

4. Takes a long time to open a bookmarked section.

iCHM is still much better.

But if MHz can improve its feature set and fix its display problems, it may improve on iCHM and would be worthwhile to use.

Reply0 replies
Version 1.0
Sharlassou Member IconReview+17

its at least good & free!!
also use iChm which is also great program. if u read lots & lots of CHM files which I hadn't heard even of until not long ago when I found a manual for some other program & it had the .chm extension & i didn't have a clue this format existed until then.

I don't know for sure at all about this CHM format so don't yell @ me if I am wrong er somethin ;] but it looks like its mostly used more by Windows users. ewwww. :} jk

also maybe its an old format or something to cause especially with the much more used PDF format. at least by us Mac users but I thought even Windoze ppl would be using it as a standard format by now geeez. OR I could be waay wrong about this whole thing which I probably am so like I before said just dont listen to me much lol.
This program though the MHz seems to work & open CHM files OK & it is free to use + it has a pretty nice & use-able interface look so its easy to use I think.
THANKS TO YOU, the developer of this program for your hard work & letting it out for free!!

Reply1 reply
Version 1.0
Twilight (Developer)

AFAIK, iChm is alos a great mac application, but when i used it, i can not change the font of chm file, so i wrote MHz for this purpose, and
Thank you for your reple.

P.S. MHz is not a free software, you can buy it via our website, if you want. :-)

MMak (Developer) Member IconDev+0
MMak (Developer)

MHZ has discount to 3.99 USD. See our websiite at http://www.flyingegg.info

Reply0 replies
Version 1.0
BradMacPro Member IconReview+6

Can't use PageUp nor PageDown, so it's a little pain in the neck. Does have a search function and seems fast enough, so.. mixed review.

Reply1 reply
Version 1.0
Twilight (Developer)

This function will be added in next version of MHz!
Thanks for commenting

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Current Version (1.x)


Downloads 673
Version Downloads 673
License Demo
Date 26 Jan 2011
Platform Intel 64 / OS X / Intel 32
Price $9.99
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