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TCPViewCurrPorts
Free

Free to download and use. The software is closed source.

 Free

Freeware from NirSoft; free to redistribute as long as nothing is charged.

Windows Windows
  • It lists every endpoint with the owning process, remote address and state, and lets you close a connection…
  • Shows the process, path and user behind every open port
  • Can close TCP connections and kill the owning process
  • It is closed-source Microsoft freeware with no history or alerting; it shows the current picture only.
  • Official requirements list Windows versions up to Windows 10
  • The 'Use DNS Cache For Host Names' option leaks memory during long auto-refresh sessions
Downloadable app Downloadable app
Closed source Closed source
License not stated License: Freeware
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked October 8, 2026

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