Mapika

Mapika / portview

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See what's on your ports, then act on it. Diagnostic-first port viewer for Linux, MacOS and Windows.

cli devtools linux port process
36
1
100% credibility
Found Feb 09, 2026 at 15 stars 2x -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Rust
AI Summary

Portview is a Linux diagnostic tool that lists processes using network ports with detailed info and lets users stop them directly.

How It Works

1
🔍 Spot a port problem

You're trying to start an app but a port is already in use, so you search for a simple way to check what's blocking it.

2
📥 Get portview set up

Run the easy install script to add the port viewer to your computer in seconds.

3
🚀 Start viewing your ports

Launch the viewer to instantly see a list of all ports in use and which programs are holding them.

4
👀 Spot the troublemaker

A colorful table shows every port, the program using it, how long it's been running, and its resource use, making issues jump out.

5
Take action
🔎
Check details

See full info like memory use, start time, and command for that port.

🛑
Free the port

Confirm to gently stop the program blocking your port.

✅ Problem solved

Your app now starts perfectly on the free port, and you feel in control of your computer's network doors.

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Star Growth

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AI-Generated Review

What is portview?

Portview is a Rust-built CLI tool that scans your listening ports across Linux, macOS, and Windows, showing PID, user, process name, uptime, memory use, and full command lines in a clean table. Run `portview` for a quick overview, `portview 3000` to inspect a port, or `portview watch --docker` for a live TUI that tags Docker containers and lets you stop/restart/tail logs directly. It solves the hassle of juggling `lsof`, `ss`, or `netstat` by combining diagnostics and actions like killing processes into one ~1MB zero-dep binary.

Why is it gaining traction?

Unlike kill-first tools like fkill-cli or bare killers like killport, portview prioritizes understanding—uptime, CPU time, and children processes before you act. Docker integration shines: containers show as rows even without host PIDs, searchable by name/image, with JSON output for scripting. Devs dig the intuitive TUI keybindings (j/k navigate, d kills, / filters) and cross-platform parity without shelling out to OS tools.

Who should use this?

Backend devs debugging "port 3000 already in use" errors, DevOps folks managing Docker-published ports on mixed fleets, or local sysadmins hunting zombie Node/Postgres servers. Ideal for frontend devs tired of rebooting for bound ports during hot reloads, or anyone scripting `portview --json --docker | jq` to monitor services.

Verdict

Grab it via Cargo or curl installer if you need fast port intel with Docker smarts—solid docs, Homebrew formula, and MIT license make it drop-in ready. At 15 stars and 1.0% credibility, it's early (see github stars over time, commit history), so check repo size/secrets/config for your setup, but production-viable for diagnostics now.

(198 words)

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