Online CHM Converter

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Information about CHM file format

Name CHM
Full name CHM - Microsoft Compiled HTML Help
File extension .chm
MIME type application/
Developed by Microsoft
Type of format Document file format
Description Microsoft Compiled HTML Help is a Microsoft proprietary online help format, consisting of a collection of HTML pages, an index and other navigation tools. The files are compressed and deployed in a binary format with the extension .CHM, for Compiled HTML. The format is often used for software documentation.
Technical details Help is delivered as a binary file with the .chm extension. It contains a set of HTML files, a hyperlinked table of contents, and an index file. The file format has been reverse-engineered and documentation of it is freely available. CHM files support the following features: data compression, built-in search engine, ability to merge multiple .chm help files, extended character support.
Associated programs Sumatra PDF, HTML Help Workshop


    👍 What is the best CHM converter?
    AnyConv. Our CHM converter is fast, free and does not require software installation.
    🔺 How to convert Document files to CHM?
    Choose files and upload them on the page. Select "to CHM" and click "Convert". After a few seconds, you can download CHM files.
    🔻 How do i change CHM to another format?
    Upload your CHM-file on the page. Select target format and click "Convert". CHM conversion takes a few seconds.
    📱 Can I use CHM converter on iPhone or iPad?
    Yes, you can convert CHM files from iPhone, iPad and other mobile devices, because AnyConv CHM Converter is a multi-platform web service.