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Sniffnet vs Picosnitch: catalog facts
Sniffnet	Picosnitch
Free Free and open source under the Apache 2.0 licence, funded by sponsorship.	Free Free, with source code published on GitHub.
Windows, macOS, Linux	Linux
Readable charts and per-host statistics rather than a packet list Exports to PCAP so Wireshark can take over for the detail	Alerts on new connecting or modified programs Per-executable bandwidth history with several breakdowns
Needs packet capture drivers installed, such as Npcap on Windows Not a substitute for Wireshark when you need packet-level detail	Linux only Monitors and logs traffic but does not block it
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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