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Open Port Check Tool

Chrome Web Store listing by networkappers.com

A Chrome extension with 6 000 users, a small but real audience.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 3 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
6 000
Rating
4.0 (51 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.2
Updated in the store
2015-12-25
Published
2013-03-05
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
unchanged since 01.09
6k · 2 readings
  1. 2026-09-016k
  2. 2026-09-156k
Rating
unchanged since 01.09
reviewsrating 3.96 · 2 readings
  1. 2026-09-01reviews51rating3.96
  2. 2026-09-15reviews51rating3.96
Users
unchanged since 01.09
6k · 2 readings
  1. 2026-09-016k
  2. 2026-09-156k
Rating
unchanged since 01.09
reviewsrating 3.96 · 2 readings
  1. 2026-09-01reviews51rating3.96
  2. 2026-09-15reviews51rating3.96

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

networkappers.com publishes 5 listings we track, 9k users between them. Listed website: networkappers.com.

  1. Ping Tool networkappers.com · published 2014-03-06 2k users ★ 3.0
  2. QR Code Generator Pro networkappers.com · published 2013-11-04 1k users ★ 3.8
  3. Qibla Direction Finder networkappers.com · published 2013-03-24 301 users ★ 4.8
Show 1 more from this publisher
  1. My Ip Address Pro networkappers.com · published 2014-03-10 42 users ★ 2.8

Like this one

Listings the catalog judges closest in what they say they do.

  1. LAN Portscanner Describes nearly the same job, smaller audience 739 users ★ 1.7
  2. Port Checker Describes nearly the same job, smaller audience 10 users
  3. Port explainer Describes nearly the same job, smaller audience 7 users
  4. IP, DNS & Security Tools | HackerTarget.com Describes nearly the same job, with an established audience 10k users ★ 4.1
  5. Port Knocking Describes nearly the same job, smaller audience 199 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.