{
 "schemaVersion": 1,
 "generated": "2026-10-30",
 "dataLicense": "CC BY-SA 4.0",
 "license": "CC BY-SA 4.0",
 "notice": "Data from Open Source Everything (https://opensourceeverything.org), licensed CC BY-SA 4.0: use it freely, credit the site, link to the page, and share changes under the same license. Listings were drafted with AI assistance and are managed by the r/TrueOpenSource moderators; check a project's own page before relying on a fact.",
 "id": "network-monitor",
 "name": "Seeing and blocking what apps connect to",
 "page": "https://opensourceeverything.org/g/network-monitor/",
 "category": "web",
 "categoryName": "Browsers, privacy & security",
 "job": "Watching and blocking your apps' internet connections",
 "closedApps": [
  "GlassWire",
  "Little Snitch",
  "NetLimiter"
 ],
 "coverage": null,
 "alternatives": [
  {
   "id": "opensnitch",
   "name": "OpenSnitch",
   "page": "https://opensourceeverything.org/p/opensnitch/",
   "summary": "OpenSnitch is a free firewall program for Linux computers that asks you before an app connects to the internet, and lets you allow or block it. It is for everyday Linux users who want to see and control which programs send data out.",
   "kind": "app",
   "setup": "easy",
   "setupWhy": "Install it like a normal app, or use it in your browser.",
   "platforms": [
    "linux"
   ],
   "license": "GPL-3.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 14218,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/evilsocket/opensnitch",
   "website": null,
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "opensnitch",
   "rank": 1,
   "fit": "full",
   "note": null,
   "why": "Does the whole job · Easy setup",
   "score": 71.5
  },
  {
   "id": "portmaster",
   "name": "Portmaster",
   "page": "https://opensourceeverything.org/p/portmaster/",
   "summary": "Portmaster is a free program for Windows and Linux computers that watches which apps connect to the internet and can block connections the user does not want. It is aimed at everyday people who want more control over their computer's network activity and privacy.",
   "kind": "app",
   "setup": "easy",
   "setupWhy": "Install it like a normal app, or use it in your browser.",
   "platforms": [
    "windows",
    "linux"
   ],
   "license": "GPL-3.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 13992,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/safing/portmaster",
   "website": "https://safing.io",
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "portmaster",
   "rank": 2,
   "fit": "full",
   "note": null,
   "why": "Does the whole job · Easy setup",
   "score": 69.9
  },
  {
   "id": "netguard",
   "name": "NetGuard",
   "page": "https://opensourceeverything.org/p/netguard/",
   "summary": "NetGuard is a free Android app that lets you choose which apps and internet addresses can use your Wi-Fi or mobile data, without needing to root your phone. It is for everyday Android phone and tablet users who want to save data, battery, or privacy.",
   "kind": "app",
   "setup": "easy",
   "setupWhy": "Install it like a normal app, or use it in your browser.",
   "platforms": [
    "android"
   ],
   "license": "GPL-3.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 3947,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/M66B/NetGuard",
   "website": "https://netguard.me",
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "netguard",
   "rank": 3,
   "fit": "full",
   "note": null,
   "why": "Does the whole job · Easy setup",
   "score": 63.8
  },
  {
   "id": "sniffnet",
   "name": "Sniffnet",
   "page": "https://opensourceeverything.org/p/sniffnet/",
   "summary": "Sniffnet is a desktop app that shows the internet connections your computer is making, including which programs are using the network and where the traffic goes. It is for everyday people who want to see what their network traffic is doing.",
   "kind": "app",
   "setup": "easy",
   "setupWhy": "Install it like a normal app, or use it in your browser.",
   "platforms": [
    "windows",
    "mac",
    "linux"
   ],
   "license": "Apache-2.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 41712,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/GyulyVGC/sniffnet",
   "website": "https://sniffnet.net",
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "sniffnet",
   "rank": 4,
   "fit": "partial",
   "note": "Monitors connections and shows programs, but has no blocking feature listed.",
   "why": "Does part of the job · Easy setup",
   "score": 42.4
  },
  {
   "id": "simplewall",
   "name": "simplewall",
   "page": "https://opensourceeverything.org/p/simplewall/",
   "summary": "simplewall is a free program for Windows that controls which apps can use the internet on your computer. It is meant for advanced users who are comfortable changing network settings.",
   "kind": "app",
   "setup": "easy",
   "setupWhy": "Install it like a normal app, or use it in your browser.",
   "platforms": [
    "windows"
   ],
   "license": "GPL-3.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 9211,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/henrypp/simplewall",
   "website": null,
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "simplewall",
   "rank": 5,
   "fit": "partial",
   "note": "Logs blocked and allowed packets; no live per-app view stated",
   "why": "Does part of the job · Easy setup",
   "score": 41.9
  }
 ],
 "source": "https://opensourceeverything.org/g/network-monitor/",
 "group": "Seeing and blocking what apps connect to",
 "replaces": [
  "GlassWire",
  "Little Snitch",
  "NetLimiter"
 ]
}