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TapMapPicosnitch
Free

The open-source application is available without a license fee.

 Free

Free, with source code published on GitHub.

macOS, Linux Linux
  • Makes background network chatter immediately visible
  • Real-time map view rather than a log to read
  • Alerts on new connecting or modified programs
  • Per-executable bandwidth history with several breakdowns
  • Locations are approximate GeoIP lookups, not precise
  • It only observes; it cannot block anything
  • Linux only
  • Monitors and logs traffic but does not block it
Downloadable app Downloadable app
Open source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 24, 2026

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