Open 7Z Online
Look inside a 7-Zip archive without extracting it.
Drop a file here
or
Your file stays on your device.
- Preview: Good
- File info: Yes
- Search: No
- Editing: No
About 7Z files
7z is the archive format of 7-Zip. It usually compresses better than ZIP, which makes it popular for software, backups and large downloads.
Open Online unpacks the archive in your browser with a WebAssembly build of libarchive. Nothing is uploaded.
What you can do here
- Browse folders and files
- See sizes and the compression ratio
- Search file names
- Preview text and images, or open any file in the matching viewer
- Download single files
Limitations
- Encrypted archives can’t be opened yet.
- The whole archive is loaded into memory, so very large files may not open.
Privacy
The file is read by your browser and stays on your device. Open Online has no server that could receive it, and nothing is stored once you close the tab. Privacy policy
Common questions
Can I open a single file from the archive?
Yes. Click it to preview it, or open it in the matching viewer.
Are password-protected 7z files supported?
Not yet. Encrypted archives are rejected with a message.
Can I open very large archives?
The whole archive is loaded into memory, so archives of several hundred megabytes may not open.