7Z Compressor

Create 7Z archives from one or more files.

Formats: Any files → 7Z

Your files stay on your device.

This tool processes files locally in your browser. Nothing is uploaded to Kit servers. Your originals are never modified — Kit creates a new output.

Files

Select one or more files. Originals stay untouched.

Choose files

Choose files from your device. On desktop you can also drag and drop.

Browse files

Output archive name

True 7Z format

This tool writes a real 7Z archive. It does not fall back to ZIP if writing fails.

Kit creates a genuine 7Z archive using libarchive.js in your browser. Your original files stay untouched.

Processing stays local via WebAssembly. Files are not uploaded to Kit servers.