NetSentinel is a one-stop network diagnostic and security tool for Windows.
It combines several tools that previously required separate utilities:
• Device Fingerprinter — scans your LAN's ARP table and identifies every
device by MAC OUI, hostname, and device type (camera, smart speaker, router, etc.)
• Rogue Bridge Detector — captures 802.1D/RSTP BPDUs and flags any device
that steals the Root Bridge role and causes periodic 15-45 second outages.
• Broadcast Storm Analyser — measures broadcast/multicast packet rates and
identifies which device is flooding the network.
• IoT Behavioral Baseline — learns normal IoT traffic patterns and raises
an alert if your smart fridge starts port-scanning or talking to a C2 server.
• Root Cause Correlator — links trace results, storm data, and STP findings
into a single plain-English verdict with actionable remediation steps.
• Connection Stability Monitor — long-term background ping logger with
outage detection, jitter analysis, and a 24-hour stability score.
• TCP Port Scanner, OS Fingerprinter, CVE Lookup, DNS Leak Test, Speed Test,
ARP spoof detector, DHCP monitor, SNMP poller, and more.
Most features require Administrator privileges for raw packet capture.
Install Npcap (https://npcap.com) for STP, Storm, and ARP modules.
Publisher’s description
What is NetSentinel?
NetSentinel by NetSentinel Project is open-source Windows software in the network tools category. It is written in Python.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 2.4.0, released on September 21, 2026. The version history goes back to April 28, 2026: 103 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (ossianericson/netsentinel) has 27 stars. Similar programs include Wireshark, ZeroTier One and Nmap.
Project description on GitHub: “Find every device on your network, catch the faults that cause dropouts, and prove an outage to your ISP — all in one local desktop app. Rogue bridge & broadcast storm detection, ARP spoof watch, port scanning, CVE lookup, stability logging. 100% local, no telemetry.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: NetSentinel is an open-source network tool tool for 64-bit PCs. Administrators can deploy it unattended.
Is NetSentinel safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
AABBBE11EB920CFE439E208E40C3536E5A3CCE8875E110ADA10C84A1C48D2694· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 103 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 2.4.0Latest | September 21, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.3.0 | September 6, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.8 | September 3, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.7 | August 14, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.6 | August 12, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.5 | August 8, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.4 | August 8, 2026 | — | 64-bit EXE (Inno Setup) |
| 2.2.3 | August 7, 2026 | — | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id NetSentinel.NetSentinel -eNetSentinel-Setup-2.4.0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTARTRelated guide: How to use winget: install and update apps
Information
- Publisher
- NetSentinel Project
- Category
- Network tools
- Licence
- MIT
- Price
- Free
- Source code
- github.com/ossianericson/netsentinel
- Written in
- Python
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 2.4.0
- Released
- September 21, 2026
- Added to the catalogue
- April 28, 2026
- Versions listed
- 103
- GitHub stars
- 27
- GitHub forks
- 3
- Website
- github.com
- winget ID
- NetSentinel.NetSentinel
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is NetSentinel free?
Yes. NetSentinel is open-source software under the MIT licence.
Is NetSentinel safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install NetSentinel with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can NetSentinel be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does NetSentinel run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of NetSentinel?
The versions page lists all 103 versions with links to their official installer files, back to April 28, 2026.
What are alternatives to NetSentinel?
Wireshark, ZeroTier One, Nmap, iPerf3 and simplewall. The alternatives page compares them.
