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SmartSniff vs Cocoa Packet Analyzer: catalog facts
SmartSniff	Cocoa Packet Analyzer
Free Freeware from NirSoft; free to redistribute as long as nothing is charged.	Free Downloadable directly from the developer site with no price shown.
Windows	macOS
Shows traffic as readable client-server conversations Can capture without installing a driver via Raw Sockets	Native macOS interface with menu bar capture QUIC, HTTP/3 and TLS 1.3 decryption
Official system requirements list Windows versions up to Windows 8 Raw Sockets mode misses outgoing UDP and ICMP packets and is unreliable on some systems	Current version requires macOS 26 or later macOS only
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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