ZIP to 7Z
Convert a ZIP archive to 7z.
Click or drop your file here
.zip
How it works
1
Upload
Drop your .zip file
2
Convert
processed securely, with automatic deletion after processing.
3
Download
Get the 7z file
Features
Better compression
— the 7z format (LZMA) often reduces size more.Secure
— processed securely, with automatic deletion after processing.Structure preserved
— the folder tree is kept.Common use cases
Re-compressing a ZIP archive to a smaller 7z file
Preparing an archive for software that expects the 7z format
Reducing storage space for a large archive
Your files are handled securely
Your file is processed securely on our servers, then automatically deleted right after processing. It is never shared or kept.
Frequently asked questions
Does 7z compress better?
Often yes, thanks to the LZMA algorithm, especially on text and code.
Do I need software to open a 7z?
Yes, a 7z-compatible tool (7-Zip, etc.) is needed to open it.
Are my files sent online?
Yes, processing is secure on our servers, then the file is automatically deleted.
Do I need to install anything?
No, it works directly in your browser.
Is it free?
Yes, with no account required.