CHM Converter

Convert files to and from chm online

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Compiled HTML Help

CHM (Compiled HTML Help) is a proprietary file format developed by Microsoft for distributing documentation and help files on Windows systems. Introduced in 1997, CHM uses HTML as its core markup language and compresses its content for optimized loading and navigation. The compiled nature allows indexing and searchability within large help manuals. CHM files integrate seamlessly with help features in Windows applications via standardized API calls. They display content through a navigational framework with tabs, index, search, and zoom capabilities. The .chm file extension identifies the CHM format. It rose to popularity for delivering searchable software manuals and documentation bundled with programs. However, security concerns led Microsoft to restrict CHM file usage. Though proprietary, CHM demonstrated early innovation in packaging web content for offline help systems.

Convert Between Popular Document Formats

Our document converter supports conversion between PDF, Word, Excel, PowerPoint, text and many other document formats.

Blazing Fast Document Conversion

Our optimized encoding algorithms allow fast conversion of even large or complex documents in just seconds or minutes.

Cloud-Based for Access Anywhere

Since it runs in the cloud, our document converter is accessible on any device from any location.

Customize Your Converted Documents

Adjust document renderer settings like fonts, margins, page size, headings and other settings to customize the conversions.

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Your documents are safe with our 256-bit SSL encryption and other stringent security measures. We guarantee privacy.

Compatible With All Your Devices

Our responsive document converter works perfectly on desktop, laptop, tablet and mobile devices, on any operating system.

Supported Conversions

Convert from CHM Conversions
1 chm to pdf
2 chm to rtf
3 chm to txt
Convert to CHM Conversions