Tools / File Converter / CHM to 7Z Converter

CHM to 7Z Converter

Convert CHM files to 7Z. Free and without uploading.

This tool converts CHM files to 7Z. Windows help file.

7Z is 7-Zip’s archive format. It usually compresses better than ZIP and supports strong AES-256 encryption, but most systems need extra software to open it. The CHM archive is opened and its files and folders are repacked as 7Z. For password-protected archives you can enter the password, and set one for the new archive too.

Conversion happens inside your browser; your files are never sent to a server.

How to use

1. Drag and drop your CHM files, paste them, fetch one from a link, or use "Choose files".
2. Enter the password if the archive has one.
3. Press "Convert" and download the 7Z files.

Frequently asked questions

Is anything lost when converting CHM to 7Z?

No. Files are extracted and repacked as they are; their contents don’t change.

How many files can I convert at once?

There is no limit. Download the results one by one or as a ZIP.

Are my files uploaded?

No. Your CHM files are converted to 7Z inside your browser.