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CLI tool for inspecting and managing services listening on localhost ports

1,054 starsGo

Sonar – A tiny CLI to see and kill whatever's running on localhost

by raskrebs·Mar 20, 2026·204 points·77 comments

AI Analysis

●●SolidSolve My ProblemCozy

Replaces lsof grep chains with Docker-aware port management and SSH remote scanning.

Strengths
  • Unified view of processes, containers, and Compose projects in one table.
  • SSH remote scanning lets you inspect ports on other machines without SSHing manually.
  • Shell completions for port numbers and custom column output for scripting.
Weaknesses
  • No Windows support mentioned—install script is bash-only for now.
  • Port inspection is a solved category with lsof, netstat, and Docker Desktop.
Target Audience

Backend developers running multiple local services and Docker containers

Similar To

lsof · Docker Desktop · Portainer

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