Convert CHM to T7Z
Online & free tool to convert CHM files to T7Z


1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 300 MiB combined)

2) Output format

Select a target format to convert to:

3) Convert

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1) File URL

Choose file URL to convert:


2) Output format

Select a target format to convert to:

3) Convert

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1) Cloud Service

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2) Output format

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3) Convert

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CHM The CHM file format and its associated .chm filename extension, is a proprietary file format developed by Microsoft. Its full name is compiled HTML Help. CHM was released to the public in 1997 as a bundle with Microsoft Windows 98 and was primarily designed to facilitate documentation on the Windows platform, particularly help files for software applications that run on the Microsoft Windows platform. Essentially, a CHM file is a collection of HTML files packed as a single compressed file. Though the format is proprietary, it was successfully reverse engineered by the late 90's to early 2000s allowing the development of open source readers that are capable of opening files with the .chm extension. The format was succeeded by the LIT format.
T7Z The .7z filename extension is associated with the 7z compressed file archive format and the open source 7-zip compression utility both developed by Igor Pavlov. The format had its initial release in 1999. It consists of a start header 32 bytes in size which contains the signature and link to the ending header, followed by the compressed data, a metadata block, and finally the end header. 7z supports limited recovery options for 7z archive files which can open but for one reason or another cannot extract due to CRC or other data related errors.

How to convert CHM to T7Z

STEP 1

Select the document file in the CHM format to convert to the T7Z format, you can select a file from your computer or your Google Drive or Dropbox account.                            

STEP 2

Choose the T7Z format from the drop-down list as the output format, and click the Convert button, you can convert up to 5 files at the same time and a maximum size of up to 300 MiB.

STEP 3

Wait until your file is uploaded and converted into the T7Z archive format, you can download the converted file up to a maximum of 5 times, and can also delete the file from the Download page.