Real-time Network Monitor · Windows

Your network. Under control.

Monitor every connection, control your firewall, change your DNS, detect threats — all from one sleek, dark dashboard.

Download for Windows See All Features
Monitoring 47 connections
00:14:33
Dashboard
Connections
Firewall
DNS
Bandwidth
Threats
Diagnostics
Log
Kill Switch
Connections · 47 live
Group by App Export CSV
Process
Remote
Port
State
▼ chrome.exe · 8 connections
chrome.exe
142.250.80.46
:443 HTTPS
EST
chrome.exe
64.233.160.99
:443 HTTPS
EST
▼ discord.exe · 3 connections
discord.exe
66.22.196.30
:443 HTTPS
EST
▼ steam.exe · 12 connections Steam
▼ svchost.exe · 6 connections SMB
▼ unknown.exe · 1 connection ⚠ 4444
Windows 10 / 11 · Free · No account needed
50+
Port Labels
10
Modules
0
Data Collected
100%
Local · No Cloud
Everything you need

Full network control.
Zero compromises.

Every module you need to monitor, protect, and debug your Windows network — in one dark, fast interface.

Live Connections
See every active TCP/UDP connection in real time. Filter by process, IP, port, or state. Block any IP instantly with one click.
Port Intelligence
50+ port service names automatically labeled next to every connection — HTTPS, Steam, Minecraft, DNS, RDP, OpenVPN, and more. Color coded by category.
50+ Labels
Group by App
Port Master-style grouped connections view. All connections from chrome.exe, discord.exe, or steam.exe collapsed under one expandable header.
New
Firewall Manager
View, add, toggle, and delete Windows Firewall rules. Block specific apps, IPs, or ports — inbound or outbound — with a clean UI.
Bandwidth Monitor
Real-time upload and download charts per network adapter. Animated sparklines track your throughput history over time.
DNS Settings
Switch DNS servers with one click. Built-in presets for Cloudflare, Google, Quad9, OpenDNS, AdGuard, and more. Or set custom DNS per interface.
Threat Analysis
Automatically flags connections using suspicious ports like 4444, 1337, 31337. Highlights unusual processes and lets you block with one click.
Diagnostics
Run Ping, Traceroute, DNS Lookup, Whois, ARP Table, and Route Table directly in the app. Inline terminal-style output, no cmd needed.
ARP + Route
Network Map
Animated radar scans your local subnet via ARP ping. Discovers all live devices with their IP and MAC addresses in real time.
Radar
Connection Log
Every connection is logged with timestamp. Search, filter, export as JSON — full audit trail of all network activity since launch.
Top Remote IPs
Dashboard panel showing the most active remote IPs across all connections, with a visual bar chart. Click any IP to copy it instantly.
ARP Table
View your full ARP cache — all IP to MAC address mappings on your local network — directly inside the Diagnostics page.
New
Route Table
Print your system's full routing table with a single button. See every network destination, gateway, and metric — no command prompt needed.
New
System Info
Full hardware overview — OS build, CPU model and core count, total RAM, GPU, and disk size — loaded directly from the system.
Export CSV
Export the current live connection list as a CSV file. Includes process, protocol, local/remote addresses, state, and PID.
Port Intelligence

Know what every
connection is.

NetSent automatically identifies 50+ port numbers and labels them right in the connections table. Gaming traffic, VPN tunnels, system services, and dangerous ports are all color-coded — so you know exactly what's happening on your network at a glance.

Common
HTTP :80 HTTPS :443 DNS :53 SSH :22 FTP :21 RDP :3389 SMB :445
Gaming
Steam :27015 Minecraft :25565 Valorant :7086 WoW :3724
VPN
OpenVPN :1194 WireGuard :51820 IKEv2 :500
Danger
Metasploit :4444 Elite :31337 SubSeven :1337
Emergency Override

Kill Switch.
One toggle.
All traffic stopped.

The Kill Switch instantly blocks all inbound and outbound traffic via Windows Firewall — no exceptions. Toggle it from the sidebar or hit Ctrl+K from anywhere in the app. Re-enable when ready.

KILL SWITCH ARMED
Block ALL inbound traffic
Block ALL outbound traffic
Windows Firewall API
Toggle from sidebar or Ctrl+K
State persists on restart
Built-in Diagnostics

Ping. Trace. Lookup. ARP. Route.

Six diagnostic tools built right in — no terminal needed. Inline output, instant results, right inside NetSent.

NetSent — Diagnostics
› ping 1.1.1.1
Pinging 1.1.1.1 with 32 bytes of data:
Reply from 1.1.1.1: bytes=32 time=8ms TTL=57
Reply from 1.1.1.1: bytes=32 time=9ms TTL=57
Minimum = 8ms, Maximum = 9ms, Average = 8ms
 
› nslookup google.com
Server: 1.1.1.1 (Cloudflare)
Non-authoritative answer: 142.250.80.46
 
› arp -a
Interface: 192.168.1.5
192.168.1.1   00-11-22-33-44-55   dynamic
192.168.1.100   aa-bb-cc-dd-ee-ff   dynamic
192.168.1.255   ff-ff-ff-ff-ff-ff   static
 
› route print
Network Destination   Netmask      Gateway      Metric
0.0.0.0               0.0.0.0      192.168.1.1    25
127.0.0.0             255.0.0.0    On-link        331
 
›
Requirements

Lightweight. No bloat.

🪟
Windows 10+
64-bit required
🛡️
Admin Rights
Auto-requested on launch
💾
~120 MB
Installed size
📡
No Internet
100% local, no cloud
Under the hood

How it works

NetSent runs locally on Windows, polling your system every second with zero cloud dependency.

01
Query the OS
Every poll, NetSent calls netstat and Windows APIs to get a live snapshot of every TCP/UDP connection, including process name and PID.
02
Enrich & Analyze
Connections are tagged with port labels, geo-location, IP reputation, and suspicious-port flags — all without sending data outside your machine.
03
Act in real time
Block an IP with one click, swap your DNS preset, toggle the kill switch, or kill a process — changes hit the Windows Firewall and OS instantly.
Changelog

What's Changed

v1.2.0 NEW
Feb 2026
  • Port scanner — built-in TCP connect scan in Diagnostics (up to 2000 ports with service labels)
  • CPU % per process — real-time CPU column on the Processes page, color-coded by load
  • World map — live canvas dot map on Dashboard showing countries of active connections
  • Comparison table, roadmap, and press kit added to netsent.dev
v1.1.6
Feb 2026
  • Bandwidth graph — 60-second throughput chart on Bandwidth page
  • IP geo-location — country code next to remote IPs in Connections
  • IP reputation — THREAT tag for IPs on ipsum blacklist feed
  • Connection alerts — Windows toast when a new process makes its first outbound connection
  • Kill Switch whitelist — IPs always allowed even with kill switch on
v1.1.5
Feb 2026
  • Auto-update checker — app notifies you when a new version is available
  • How it works, FAQ, and Built by one person sections added to netsent.dev
  • Minor bug fixes
FAQ

Common questions

Is NetSent free? +
Yes. Completely free, no account required, no subscription. Download, install, done.
Does it phone home or collect data? +
No. NetSent runs entirely local. The only outbound requests it makes are: checking for updates (fetches version.json from netsent.dev once on launch), and IP geo-location lookups via ip-api.com when you're on the Connections page. No telemetry, no analytics, no accounts.
Why does it need admin rights? +
Windows requires elevated privileges to read certain network data, add or remove firewall rules, change DNS settings, and toggle the kill switch. NetSent will auto-prompt for elevation on launch. If you decline, most features won't work.
What is the kill switch? +
The kill switch sets your Windows Firewall policy to block all outbound traffic instantly. Every app on your machine loses network access until you disable it. Use it when you want to cut off everything — you can whitelist specific IPs to stay allowed through it.
Will it work on Windows 11? +
Yes. NetSent supports Windows 10 and 11, 64-bit.
What is IP reputation / the THREAT tag? +
On launch, NetSent downloads a curated list of known-malicious IPs from the ipsum threat feed (IPs that appear across 3+ public threat intelligence lists). If one of your active connections matches, the IP gets a red THREAT tag. It refreshes every 6 hours.
Is the source code available? +
Not yet open source, but I'm considering it. Follow the Discord for updates.
Why NetSent?

NetSent vs the alternatives

Every other tool is either bloated, paywalled, or not built for Windows network monitoring.

Feature NetSent GlassWire Wireshark Resource Monitor
Free ✓Freemium✓✓
No account required ✓✗✓✓
Firewall rule manager ✓✓✗✗
Kill switch ✓✗✗✗
DNS switcher ✓✗✗✗
IP reputation (THREAT) ✓✓✗✗
Geo-location tags ✓✓✗✗
Port scanner built-in ✓✗✗✗
World map view ✓✓✗✗
No telemetry / 100% local✓✗✓✓
Dark theme ✓✓PartialSystem
Packet capture / deep inspect✗✗✓✗
What's coming

Roadmap

No promises on dates. Just a public list of what's being worked on and what's next.

✓ Shipped
Port scanner in Diagnostics
CPU % per process
World map dashboard
IP geo-location & THREAT tags
Kill switch + whitelist
Bandwidth graphs
Process groups
Auto-update checker
→ In Progress / Next
Connection history & timeline replay
Per-process bandwidth usage
Custom alert rules (e.g. ping if process X connects to Y)
Dark / light theme toggle
💡 Considering
macOS / Linux port
Open-source release
VPN leak detection
Plugin / scripting API
Packet capture (deep inspect)
Press Kit

Use NetSent on your project

Add the badge to your README, blog post, or project page to show you're monitoring your network.

Badge Preview
Monitored by NetSent
Markdown (for GitHub READMEs)
[![Monitored by NetSent](https://netsent.dev/badge.svg)](https://netsent.dev)
App Name
NameNetSent
Versionv1.2.0
PlatformWindows 10/11 · x64
LicenseFree / Proprietary
Author7n7
Websitenetsent.dev
One-liner
"Real-time network monitor and firewall manager for Windows — free, local, no account."
👤
Built by one person
7n7 · 2026

NetSent started because every network monitor I tried was either bloated, behind a paywall, or ugly. I built the thing I actually wanted to use — a clean, fast, dark-themed tool that works without an account, without phoning home, and without a subscription. Everything here is hand-written: the Electron main process, the renderer, the website.

Electron JavaScript HTML / CSS Windows APIs PowerShell Cloudflare R2
Community

Join the Discord.

Get support, share feedback, report bugs, and see what's coming next. Built by 7n7 — come hang.

Join Discord
Contact

Get in touch.

Have a question, found a bug, or just want to say hi? Reach out directly.

Discord
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GitHub
Brokaliy

Ready to take
control?

One installer. No subscription. No account. Just your network, under control.

Download NetSent
Windows 10 / 11·x64·Free·built by 7n7
Download NetSent
Free. No account. No subscription. Just your network, under control.