Best Open Source System Software 2025

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Browse free open source System software and projects below. Use the toggles on the left to filter open source System software by OS, license, language, programming language, and project status.

Relax: PRTG Monitors Your IT for You
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You’re the go-to IT person, always putting out fires and keeping things running. With PRTG, you get reliable alerts to monitor your entire IT infrastructure, without the noise. Our intuitive setup gives you a clear overview of your network, devices, and applications in real time. Get instant alerts only when something needs your attention, whether you’re at your desk or on the move. Spend less time worrying about outages and more time focusing on what matters. Set up PRTG once and let it work for you - PRTG has you covered.

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The only CRM built for B2C
Stop chasing transactions. Klaviyo turns customers into diehard fans—obsessed with your products, devoted to your brand, fueling your growth.

Klaviyo unifies your customer profiles by capturing every event, and then lets you orchestrate your email marketing, SMS marketing, push notifications, WhatsApp, and RCS campaigns in one place. Klaviyo AI helps you build audiences, write copy, and optimize — so you can always send the right message at the right time, automatically. With real-time attribution and insights, you'll be able to make smarter, faster decisions that drive ROI.

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1

Robolinux

Announcing Robolinux Cinnamon 14.1

Announcing The New Robolinux Series 14 Mate LTS - 2034 Robolinux is very pleased to announce a completely new 14.1 Mate privacy centered 1inux operating system you can download freely while also offering our users an optional 14+ advanced upgrade which comes with our Untracker and FAAST Boot along with one click popular privacy software installers like Tor and I2p, Wireshark and Bleachbit plus many more for a fair and reasonable price. Robolinux14.1-Mate is ideal for beginners and advanced users. We are proud that it comes with Enoch AI which is TOTALLY 100% PRIVATE, FREE, HONEST & UNCENSORED built into Robolinux Cinnamon 14.1 The Robolinux 14.1 version with rock solid Long Term Support through 2034! requires users to set secure boot in their BIOS. It is currently available in the Cinnamon desktop flavor. we will release series 14 Xfce version in the next two months.For more information please see Readme file. Warmest regards John Martinson Robolinux.org

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6 Reviews

Downloads: 204 This Week

Last Update: 2025-10-04
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2

Unetbootinbitti

Tool for creating live usb-drives and downloading distros

Tool for creating live usb-drives and downloading distros. This is an upgraded version of Unetbootin focusing on Bittix linux 9 and above and Linux Mint and Linux Mint debian. Has Distrowatch.com link etc.

Downloads: 18 This Week

Last Update: 2016-11-28
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3

MAIA Unit Converter

This tool helps you to convert many units of calculations.

The MAIA Unit Converter helps you, converting many kind of unit in your calculation project or school stuffs! You just have to lauch it and hit F1 to get help on how to use it!

Downloads: 1 This Week

Last Update: 2013-12-11
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4

Repository Portable

Downloads: 0 This Week

Last Update: 2017-04-20
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The All-in-One Commerce Platform for Businesses - Shopify
Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.

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