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.

Enterprise-Grade Monitoring - Zero Compromises
PRTG delivers deep visibility and proactive alerts for complex IT. Monitor, analyze, and optimize - all in one platform.

Managing a large, distributed IT environment demands more than basic monitoring. PRTG provides a unified view of your entire infrastructure - across sites, clouds, and hybrid setups. Advanced analytics, customizable dashboards, and granular access controls empower your team to detect issues early and respond fast. Automate reporting, ensure compliance, and scale effortlessly as your network grows. With PRTG, you get reliability, flexibility, and the insights you need to keep your business running at peak performance.

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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

euro keyboard

Multilanguage on-screen keyboard for PocketPC (Windows Mobile)

Downloads: 1 This Week

Last Update: 2018-01-22
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4

Repository Portable

Downloads: 0 This Week

Last Update: 2017-04-20
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Cloud-based observability solution that helps businesses track and manage workload and performance on a unified dashboard.
For developers, engineers, and operational teams in organizations of all sizes

Monitor everything you run in your cloud without compromising on cost, granularity, or scale. groundcover is a full stack cloud-native APM platform designed to make observability effortless so that you can focus on building world-class products. By leveraging our proprietary sensor, groundcover unlocks unprecedented granularity on all your applications, eliminating the need for costly code changes and development cycles to ensure monitoring continuity.

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