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ShichiZip vs MacPacker: catalog facts
ShichiZip	MacPacker
Free Free, with source code on GitHub.	Free Free and open source, available directly or from the App Store.
macOS	macOS
Full 7-Zip format support Native macOS interface	Browse archives without extracting them Opens nested archives directly
macOS only Small single-developer project	Creating and editing is limited to ZIP macOS only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.