How to convert ZIP to 7Z
To convert ZIP to 7Z, upload your ZIP file, choose 7Z as the output format and press Convert. The finished 7Z file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter turns ZIP archive files into 7Z in your browser, with no software to install and no watermark. The conversion runs on our server using Python's archive libraries with safe extraction, and the result is ready to save to your phone or computer in seconds. Your ZIP file is deleted automatically about 30 minutes after the conversion.
What you get with ZIP to 7Z
- Excellent compression
- AES-256 encryption
- Free and open
- Opens in: 7-Zip, WinRAR, The Unarchiver, Keka and most archive tools
What to expect from this conversion
- The archive is unpacked and repacked as 7Z, so every file keeps its name and folder structure. Contents are not changed.
- Password-protected archives cannot be converted. For safety, archives with unsafe paths, or that unpack to more than 2000 MB, are refused.
- 7Z usually gives the smallest file but needs 7-Zip or a compatible tool to open.
ZIP vs 7Z
| Property | ZIP | 7Z |
|---|---|---|
| Full name | ZIP Archive | 7-Zip Archive |
| Released | 1989, PKWARE (Phil Katz) | 1999, Igor Pavlov |
| Family | Archive | Archive |
| Opens in | Windows, macOS, Linux, iOS, Android and every archive tool | 7-Zip, WinRAR, The Unarchiver, Keka and most archive tools |
| Best for | emailing several files at once; sharing folders | shrinking large folders; archiving for storage |
Steps to convert ZIP to 7Z
- Drop your ZIP file onto the converter, or click to choose it.
- Check that 7Z is selected as the target format and adjust the options if you want.
- Press Convert, then save the new 7Z file to your device when it finishes.
Tips for the best result
- Use ZIP for sharing and 7Z for the smallest files.
- Remove the password before converting.
Frequently asked questions
How do I convert ZIP to 7Z?
Drop your ZIP file on the converter, confirm that 7Z is the target format and press Convert. When it finishes, press Save to device or download the 7Z file. No account or software is needed.
Is the ZIP to 7Z converter free?
Yes. It is free, with no watermark, no sign-up and no limit on how many files you convert. The site is supported by ads.
What should I know before converting ZIP to 7Z?
The archive is unpacked and repacked as 7Z, so every file keeps its name and folder structure. Contents are not changed. Password-protected archives cannot be converted. For safety, archives with unsafe paths, or that unpack to more than 2000 MB, are refused.
Are the files inside my ZIP archive changed?
No. They are unpacked and repacked as 7Z with the same names and folders. Only the container changes.
Which programs open 7Z files?
7Z files open in 7-Zip, WinRAR, The Unarchiver, Keka and most archive tools.
How large a file can I convert?
Up to 500 MB per file. Files are deleted from the server about 30 minutes after conversion, and no one looks at them.