CHM File Extension

CHM file extension is created by Microsoft, also known as Compiled HTML Help File. CHM has been classified as Web Files. This File type categories under Zip, Text, Binary and XML, however, the format of this file format has not been determined yet. You can open CHM files in Apple Safari program.

Compiled HTML Help File Type

What is a CHM File Type?

As the documentation was improved and progressed to web- and browser-based formats, the CHS format was largely removed. Most programs do not use more documentation; help based on CHM @ - @, and most programs that used to open CHM files are not maintained or n' open more CHM files.

All CHM files are compressed according to the LZX compression format.

Free online CHM Tools & Apps

We have also the free online .CHM (Compiled HTML Help File) file extension apps that can allow to view, edit, convert from to CHM, merge, split and compare the CHM files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

CHM Converter

Open CHM

Edit CHM

Compare CHM Files

Merge CHM Files

Split CHM Files

CHM Metadata Viewer

CHM Files Common Issues

There are few common issues with the Compiled HTML Help File .CHM File Extensions while opening the .CHM files on Windows and MacOs, we have solution to those issues such as:

Can't Open CHM Files?

1. You must have supported software programs installed for Compiled HTML Help File on your system such as Apple Safari.
2. Associate default Apple Apple Safari program for *.chm (Compiled HTML Help File) files.
   
   

   Associate CHM Default Program on Windows

   1. Right-click a *.CHM (e.g example.chm) file and click Open With.
   2. In the Open with dialog box, click Apple Apple Safari program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .chm files.
   
   

   Associate CHM Default Program on MacOs

   1. Click *.CHM (e.g example.chm) file and click information -> Open With.
   2. In the programs list, click Apple Apple Safari program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Apple Safari extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related CHM File Extensions

CHM default file extension is .CHM and other similer related extensions are:

All Platform Software Programs for CHM File Extension

List of all softwares that can open the CHM files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open CHM File on Windows

	Software	License	Developer
	Calibre 3 for Windows	Open Source	Calibre
	Cool Reader 3 for Windows	Open Source	Cool Reader
	Microsoft Edge 80 for Windows	Bundled	Microsoft
	Mozilla Firefox 75 for Windows	Open Source	Mozilla
	Microsoft Internet Explorer 11 for Windows	Freeware	Microsoft
	Krasbit Technologies Chameleon 000 for Windows	Paid	Krasbit Technologies Chameleon
	Zipeg 2 for Windows	Open Source	Zipeg

Open CHM File on Mac OS

	Software	License	Developer
	Calibre 3 for MacOs	Open Source	Calibre
	Cool Reader 3 for MacOs	Open Source	Cool Reader
	Microsoft Edge 80 for MacOs	Bundled	Microsoft
	Mozilla Firefox 75 for MacOs	Open Source	Mozilla
	Apple Safari 12 for MacOs	Bundled	Apple
	Zipeg 2 for MacOs	Open Source	Zipeg

Open CHM file on Linux

	Software	License	Developer
	Calibre 3 for Linux	Open Source	Calibre
	Cool Reader 3 for Linux	Open Source	Cool Reader
	Mozilla Firefox 75 for Linux	Open Source	Mozilla

Open CHM file on Web

Open CHM file on iOS

	Software	License	Developer
	Microsoft Edge 80 for iOS	Bundled	Microsoft
	Mozilla Firefox 75 for iOS	Open Source	Mozilla
	Apple Safari 12 for iOS	Bundled	Apple

Open CHM file on Android

	Software	License	Developer
	Cool Reader 3 for Android	Open Source	Cool Reader
	Microsoft Edge 80 for Android	Bundled	Microsoft
	Mozilla Firefox 75 for Android	Open Source	Mozilla

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About CHM - Compiled HTML Help File

Listed file converters are from the wide range of online file converter.

These are the most polular file/document converters based on the user's review and usage on the FileProInfo.