How do I convert ZIP to 7Z?

Upload your ZIP file using the box above, confirm 7Z as the output format, then select Convert. The converted file is ready to download as soon as processing finishes — usually in a few seconds.

Is converting ZIP to 7Z free?

Yes, and there is nothing to sign up for. Every conversion is free, there is no paid tier, and the limits are the same for everyone.

Will the quality change when converting to 7Z?

7Z uses lossy compression, so some data is discarded to keep the file small. The default quality setting is tuned to be visually or audibly transparent for most material, and you can raise it in the conversion settings.

What happens to my file afterwards?

The uploaded file is deleted as soon as the conversion completes, and the converted file is removed automatically once its retention window ends. Download links are signed and expire within minutes.

zip7z

Convert ZIP to 7Z

Free online converter for ZIP files. High-ratio archive from the 7-Zip project. Nothing to install, no watermark, and every file is deleted automatically.

Drag and drop your files

Upload a ZIP file to convert it to 7Z. Up to 200 files at once, 10 GB each.

Free · up to 200 files · 10 GB each · files deleted automatically after 168 hours.

About ZIP and 7Z

ZIP

The default archive format across all platforms.

application/zip

7Z

High-ratio archive from the 7-Zip project.

application/x-7z-compressed

Other ZIP conversions

zip to tar
zip to tgz

Other ways to get 7Z

tar to 7z
tgz to 7z
rar to 7z
gz to 7z