.CHM File Overview

File Extension: CHM
File Type Description: Compiled HTML Help File
File Type Developer: Microsoft Corporation
Primary Associated Software: Mozilla Firefox
Primary Software Developer: Mozilla

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What is File Extension CHM?

Release of the Mozilla Firefox software program prompted the development of the Compiled HTML Help File file type by Mozilla. Internal website statistics show that CHM files are most popular with users in Taiwan and those running the Windows 10 operating system. Generally, we have found that most of these people are Google Chrome users.

Associated Developers and Software

Two World II by Reality Pump Studios
Apple Safari by Apple
Mozilla Firefox by Mozilla
Microsoft HTML Help Workshop by Microsoft Corporation
SWAT by Grassland, Soil and Water Research Laboratory
CHM Decoder by GridinSoft LLC
Apple OS X by Apple
ChemDraw by PerkinElmer
CHM Editor by GridinSoft LLC
Guohua ChmDecompiler by Guohua Software
macOS by Apple
xCHM by Open Source
WinCHM by Softany Software
Microsoft Windows Help by Microsoft Corporation

Top CHM User Languages

Top CHM File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular CHM File Countries

Top User Operating Systems

Windows 10 Windows 11 Windows 6 Windows 8.1

Associated Operating Systems


Other File Types Related to CHM Files

Extension File Type Developer File Category File Type Description
.ADP Microsoft Corporation Database Files Access Project Extension
.BR Mozilla Web Files Brotli Compressed File
.CAL Newera Software Technology, Inc. Raster Image Files CALS Raster File
.MJPG Various Developers Video Files Motion JPEG Video File
.SUN Sun Microsystems Raster Image Files Sun Raster Graphic File
.JPG-LARGE Zoner Software Raster Image Files Large JPEG Image
.RHTML Yukihiro “Matz” Matsumoto Web Files Ruby HTML Web Page
.SHT The Document Foundation Web Files HTML File With Server Side Includes
.WEBLOC Apple Web Files Mac OS X Website Location
.13 IBM Data Files IBM Voice Type Languages Scripts Data File

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