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GitHub
github.com › nutdotnet › WinNUT-Client
GitHub - nutdotnet/WinNUT-Client: WinForms-based client for monitoring your Uninterruptible Power Supply (UPS) connected to a Network UPS Tools (NUT) server. · GitHub
WinNUT is a WinForms client for connecting to a Network UPS Tools monitoring server.
Starred by 419 users
Forked by 38 users
Languages   Visual Basic .NET
free software suite for continual power systems
Latest GitHub checks status: master branch
Latest NUT CI build status: master branch
Network UPS Tools (NUT) is a suite of software component designed to monitor power devices, such as uninterruptible power supplies, power distribution units, solar controllers and servers power supply units. Many brands … Wikipedia
Factsheet
Network UPS Tools (NUT)
Developers Evgeny "Jim" Klimov
Arnaud Quette
Arjen de Korte
Charles Lepple
Numerous contributors (..)
Release March 8, 1998; 28 years ago (1998-03-08)
Factsheet
Network UPS Tools (NUT)
Developers Evgeny "Jim" Klimov
Arnaud Quette
Arjen de Korte
Charles Lepple
Numerous contributors (..)
Release March 8, 1998; 28 years ago (1998-03-08)
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Network UPS Tools
networkupstools.org
Network UPS Tools - Welcome
May 23, 2021: complementary projects led by Roger Price now hosted in the NUT organization on GitHub: the famous Config Examples book, as well as TLS Shims and TLS UPSmon for community discussion about secured NUT client-server communications · March 6, 2021: great thanks to Fosshost Org for providing virtual servers that we can use for diverse build farm! November 13, 2020: announced handing of maintainership reins from Arnaud Quette to Evgeny "Jim" Klimov · February 8, 2017: new projects 42ITy™ and Eaton Intelligent Power Controller · April 28, 2016: new project ntUPSd - Network UPS Tools Services for Windows
Discussions

NUT UPS on Windows 10
I'm currently using Windows NUT Client on a Windows 10 machine. A Synology NAS is acting as the NUT server. The UPS is a Cyberpower 1500PCFLCD. It more or less works and shuts down the PC properly. https://sourceforge.net/projects/winnutclient/ Maybe this will work for you? More on reddit.com
🌐 r/homelab
12
3
March 27, 2020
Using WinNUT with UPS to shut down both NAS and PC when power fails | Synology Community
Now install WinNUT on your PC. That's 'Windows Network UPS Tools' a freeware, open source GitHub project with a variety of networked tools for Windows to manage UPS communications and actions. The WinNUT project can be found at https://github.com/nutdotnet/ and you need the Win-NUT Client. More on community.synology.com
🌐 community.synology.com
May 31, 2024
Best NUT (Network UPS Tools) clients (for Windows)?
11 votes, 33 comments. Im looking for a NUT (Network UPS Tools) client for Windows but I might as well open the table so everyone else can post the… More on reddit.com
🌐 r/homelab
33
11
March 4, 2018
Super simple NUT UPS for Windows?
which client? the win nut client is pretty straight forward to install (a .msi file) and then you just configure the username/password/address of your nut server and it connects. Once you've got that done just configure your shutdown parameters and bob's your uncle. More on reddit.com
🌐 r/homelab
11
6
December 6, 2023
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Network UPS Tools
networkupstools.org › projects.html
Network UPS Tools - Related projects
February 4, 2025 - WinNUT-Client V2 is a replacement ... It allows a Windows client to monitor UPS state from a NUT data server running elsewhere (Linux servers, NAS appliances, etc.) and initiate safe shutdowns. WinNUT is a partial port of the client side of Network UPS Tools (NUT) to ...
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SynoForum
synoforum.com › resources › tutorials
Tutorial - Windows NUT client (incl GUI) - Network UPS | SynoForum.com - The Unofficial Synology Forum
December 16, 2021 - - GitHub - gawindx/WinNUT-Client: ... OK 3. Download the: WinNUT-Setup.msi 4. Install the: WinNUT-Setup.msi 5. SETUP of the WinNUT client · NUT host: IP of your NAS, where is running the 'Network UPS server' ...explained below ...
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Reddit
reddit.com › r/homelab › nut ups on windows 10
r/homelab on Reddit: NUT UPS on Windows 10
March 27, 2020 -

A while back in asked about how to connect multiple computers to one UPS device (post). I received excellent advice to use a Raspberry Pi to run a NUT server to do this. I'm now the proud owner of a RPi4b 2GB ram and have installed NUT and it's working well locally thanks to this tutorial.

I'm not trying to connect it to my Windows 10 machine and I'm just having a frustrating time doing so. I've first attempted to install WinNut, even though it seems like an ancient relic. Although I'm certain my credentials are correct, I receive this error when I attempt to start it:

Level INFO 03/27/2020 17:59:28 In winNUTServiceMain- Received service command ID: 1

Level INFO 03/27/2020 17:59:28 WinNUT received STOP command

Level INFO 03/27/2020 17:59:29 Detected OS as Windows NT

Level NOTICE 03/27/2020 17:59:29 Network UPS Tools upsmon 2.0.0.4

Level INFO 03/27/2020 17:59:29 UPS: ups@192.168.1.3 (slave) (power value 1)

Level INFO 03/27/2020 17:59:29 Config Load: MINSUPPLIES set to 1

Level INFO 03/27/2020 17:59:29 Config Load: NOTIFYCMD set to "c:\Program Files (x86)\WinNUT\AlertPopup.exe"

Level INFO 03/27/2020 17:59:29 Config Load: POLLFREQ set to 5

Level INFO 03/27/2020 17:59:29 Config Load: POLLFREQALERT set to 5

Level INFO 03/27/2020 17:59:29 Config Load: HOSTSYNC set to 15

Level INFO 03/27/2020 17:59:29 Config Load: DEADTIME set to 15

Level INFO 03/27/2020 17:59:29 Config Load: RBWARNTIME set to 43200

Level INFO 03/27/2020 17:59:29 Config Load: NOCOMMWARNTIME set to 300

Level INFO 03/27/2020 17:59:29 Config Load: FINALDELAY set to 5

Level ALERT 03/27/2020 17:59:29 WinNUTUpsMon Service is starting to monitor UPS

Level ERROR 03/27/2020 17:59:29 Can't login to UPS [ups@192.168.1.3]: Access denied

So instead, I installed the Binary packages for Windows and I see it's been installed but it's not running, even when I try to under some command in command prompt. I've entered my MONITOR entry and the netclient in the confg files.

At this point I'm just over my head and could use some help. I've Googled as much as I can and I just don't see any helpful guides on using NUT on Windows.

If I can get this working, I think it would be helpful to others too.

P.S. I bought a separate NETGEAR POE Switch to power the RPi with a POE hat so I had less cables going to it. The primary goal is to go from two UPS units to one for a more minimal setup. RPi has been super fun and I think these are just the darndest little machines.

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SourceForge
sourceforge.net › projects › network-ups-tools.mirror
Network UPS Tools download | SourceForge.net
May 11, 2026 - This is a NUT windows client for monitoring your ups hooked up to your favorite linux server. Now you don't need to vnc or ssh into the box to see how your ups is doing! ... Simple CGI viewer for CyberPower UPS PowerPanel commands on *NIX.
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GitHub
github.com › crazytiti › Windows-Nut
GitHub - crazytiti/Windows-Nut: Windows Network Ups Tool · GitHub
Windows Network Ups Tool remix from the original by Michael Liberman 2006-2007 matrix200 http://sourceforge.net/projects/winnutclient/ This is a NUT windows client for simple ups monitoring and auto shutdown.
Author   crazytiti
Find elsewhere
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Network UPS Tools
networkupstools.org › features.html
Network UPS Tools - Features
There is also a port of the client-side monitoring to Windows called WinNUT. Your system will probably run it too. You just need a good C compiler and possibly some more packages to gain access to the serial ports. Other features, such as USB / SNMP / whatever, will also need extra software installed. Three layers: drivers, server, clients. Drivers run on the same host as the server, and clients communicate with the server over the network. This means clients can monitor any UPS ...
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Software Informer
winnut.software.informer.com › windows › system tools › network
WinNUT. Get the software safely and easily.
May 23, 2026 - WinNUT is a lightweight Windows client for the Network UPS Tools (NUT) ecosystem. It connects to a NUT server (upsd) over the network to monitor UPS status and can initiate a clean shutdown of Windows during power events, such as prolonged outages ...
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Synology Community
community.synology.com › enu › forum › 1 › post › 188123
Using WinNUT with UPS to shut down both NAS and PC when power fails | Synology Community
May 31, 2024 - Now install WinNUT on your PC. That's 'Windows Network UPS Tools' a freeware, open source GitHub project with a variety of networked tools for Windows to manage UPS communications and actions. The WinNUT project can be found at https://github.com/nutdotnet/ and you need the Win-NUT Client.
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Reddit
reddit.com › r/homelab › best nut (network ups tools) clients (for windows)?
r/homelab on Reddit: Best NUT (Network UPS Tools) clients (for Windows)?
March 4, 2018 - Yes, i I tryed starting upsd and upsmon through the commandline. Thats how I figuered out wich libraries I needed to add and ran into the ...7b error I described. In the end I did get WinNUT to work, but I feel like the actual NUT-Client is the way to go. ... Looks like somthing is broken in the installer version 2.6.5-6. I testet Version 2.6.5-4, wich I got from their Archive https://github.com/networkupstools/nut-package-archive/tree/master/windows , with excatly the same configuration and it is working without a struggle what so ever.
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Network UPS Tools
networkupstools.org › download.html
Network UPS Tools - Download information
May 11, 2026 - The automatically generated binary build archive of the latest release is available here: NUT-for-Windows-x86_64-RELEASE-2.8.5-1-fixNSS.7z ... The jNut package (client side, Beta) has been split into its own GitHub repository.
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Reddit
reddit.com › r/homelab › super simple nut ups for windows?
r/homelab on Reddit: Super simple NUT UPS for Windows?
December 6, 2023 -

I'm trying to figure out if there are any *simple* ups management tools for Windows, that can speak to a NUT daemon? From what I can see, there *is* a NUT daemon for Windows, but it is kinda complicated to install and configure.

What I am ideally looking for is something as simple as a WMI32_Battery instance, that can be configured with the address and creds of a NUT daemon, and makes that data available as a Battery. From there, built in Windows functionality can be used to determine what to do when power fails, battery gets low, etc.

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Techno Tim
technotim.com › posts › NUT-server-guide
Network UPS Tools (NUT) Ultimate Guide | Techno Tim
January 7, 2026 - Meet NUT Server, or Network UPS Tools.It’s an open UPS networking monitoring tool that runs on many different operating systems and processors.This means you can run the server on Linux, MacOS, or BSD and run the client on Windows, MacOS, ...
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SudoNull
sudonull.com › post › 12149-Monitor-UPS-workstations-in-Windows-with-Network-UPS-Tools
Monitor UPS workstations in Windows with Network UPS Tools / Sudo Null IT News
In this case, the startup type “Startup (delayed launch)” results in the error “upsc ERROR DATA STALE”. Solution: create a task that will check for the presence of the upsd process when an event with code 1 appears from the source “Network UPS Tools” and restart the Network UPS Tools service download the xml file of the task download script (must be in the NUT \ others folder). An example script of semi-automatic installation of NUT on clients: N:\NUT-Installer-2.6.5-6.msi /qncopyN:\dll\ssleay32.dllC:\Windows\System32 /YcopyN:\dll\libeay32.dllC:\Windows\System32 /YcopyN:\dll\libgcc
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Wikipedia
en.wikipedia.org › wiki › Network_UPS_Tools
Network UPS Tools - Wikipedia
April 7, 2026 - Jim Klimov (22 May 2024). "NUT for Windows (GitHub wiki page)". GitHub. ... Russell Kroll (25 November 2004). "Network UPS Tools: Acknowledgements".
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FreeDownloadManager
en.freedownloadmanager.org › Windows-PC › NUT-Network-UPS-Tools-FREE.html
NUT - Network UPS Tools (free) download Windows version
July 22, 2023 - Download NUT - Network UPS Tools for free. NUT - Network UPS Tools - The primary goal of the Network UPS Tools (NUT) project is to provide support for Power...
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SourceForge
sourceforge.net › projects › winnutclient
Windows NUT client download | SourceForge.net
August 11, 2015 - Download Windows NUT client for free. This is a NUT windows client for monitoring your ups hooked up to your favorite linux server. Now you don't need to vnc or ssh into the box to see how your ups is doing!
Rating: 2.5 ​ - ​ 2 votes
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GitHub
github.com › gawindx › WinNUT-Client
GitHub - gawindx/WinNUT-Client: This is a NUT windows client for monitoring your ups hooked up to your favorite linux server. · GitHub
February 4, 2025 - This is a NUT windows client for monitoring your ups hooked up to your favorite linux server. - gawindx/WinNUT-Client
Starred by 487 users
Forked by 83 users
Languages   Visual Basic .NET 72.9% | C# 27.1%
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AlternativeTo
alternativeto.net › software › network-ups-tools-nut
Network UPS Tools Alternatives - Explore Similar Software | AlternativeTo
There are seven alternatives to Network UPS Tools for Windows, Linux, Mac and FreeBSD. The best Network UPS Tools alternative is PowerChute Serial Shutdown. It's not free, so if you're looking for a free alternative, you could try WinNUT-Client ...