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TCPView vs Sniffnet: catalog facts
TCPView	Sniffnet
Free Free to download and use. The software is closed source.	Free Free and open source under the Apache 2.0 licence, funded by sponsorship.
Windows	Windows, macOS, Linux
It lists every endpoint with the owning process, remote address and state, and lets you close a connection…	Readable charts and per-host statistics rather than a packet list Exports to PCAP so Wireshark can take over for the detail
It is closed-source Microsoft freeware with no history or alerting; it shows the current picture only.	Needs packet capture drivers installed, such as Npcap on Windows Not a substitute for Wireshark when you need packet-level detail
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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