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.

  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
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  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    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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  • 1
    Wine

    Wine

    Run Windows applications on Linux, BSD, Solaris, and Mac OS X

    Wine is an Open Source implementation of the Windows API on top of X and Unix. Wine provides both a development toolkit for porting Windows sources to Unix and a program loader, allowing many unmodified Windows binaries to run on x86-based Unixes.
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    Downloads: 867 This Week
    Last Update:
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  • 2
    Wcd is another Norton Change Directory (NCD) clone. Wcd is a command-line program to change directory fast. It includes a full screen interactive directory tree browser with speed search and a fast way to choose between multiple matches.
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    Downloads: 21 This Week
    Last Update:
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  • 3
    Tria Sistema Operatiu

    Tria Sistema Operatiu

    Helps you find, download & burn the best Operating System for any PC

    Tria O.S. detects hard & soft specs of the PC where you run it, you can load this info or specify it manually to let the program inform you what would be the best operating system for a specific PC, with the specified hardware, and then see the difference by adding RAM, a SSD hard drive, changing the graphics card ... etc. REQUIREMENTS: For Linux, you need GAMBAS 3.3 or later, so you will have to install the gambas3 package before installing. 90's EDITION needs 160 MB (192 MB on a virtual machine) of RAM and works with Windows 95 and Windows NT 4.0. BRONTOSAURUS EDITION needs DirectX 9.0c and .Net Framework 2.0 and runs on Windows 98, Windows 98 SE, Windows ME & Windows 2000. XP EDITION requires .Net Framework 4.0 or newer. Runs on Windows XP, Vista, Server 2003, 2003 R2, Home Server and Server 2008. STANDARD EDITION needs .Net Framework 4.8 or 4.8.1 and runs on Windows 7, Windows Server 2008 R2, and newer (any Windows released from 2009 until today).
    Downloads: 5 This Week
    Last Update:
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  • 4
    Unetbootinbitti

    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: 8 This Week
    Last Update:
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  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
    Start Free
  • 5
    Cloudium OS

    Cloudium OS

    Written in pure ASM and Exode with cloud computing in mind.

    Cloudium OS is being written in pure ASM. It's designed for speed and ease, having cloud computing in mind. It also is secure (without requiring constant user input like Windows). But, how are we going to do this? Well every os wants/says these kind of things, so to accomplish our goals we follow these simple rules: keep it simple (that's way better then these complex interfaces etc. almost nobody wants), generalize (this makes things easier and more useful without extra complexity) and be inventive (sometimes doing it the classical way just doesn't work). Note: development peace will be temporarily lowered until February the fifth. Please check out our OS and Project site!
    Downloads: 4 This Week
    Last Update:
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  • 6
    SalentOS
    SalentOS is a GNU / Linux distribution based on Ubuntu that uses Openbox as window manager. SalentOS has been designed to combine lightness (hence the choice of Openbox), but at the same time want to maintain the completeness and features of Ubuntu. The system includes elements of gnome and xfce. This is not a distribution of the Ubuntu family, nor is connected to Canonical in any way. http://www.salentos.it
    Downloads: 1 This Week
    Last Update:
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  • 7
    Oyranos
    The Operating System Colour Management System Oyranos is intented to coordinate device informations (ICC colour profiles) and configure their system wide usage. Target is a predictable path for applications and users to match colours across devices.
    Downloads: 1 This Week
    Last Update:
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  • 8
    Change The Security Identifier for NT/2000/XP
    Downloads: 0 This Week
    Last Update:
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  • 9
    CustomCoded

    CustomCoded

    Sistema operacional Linux baseado no Ubuntu

    O Sistema Operacional CustomCoded é a unificação de variadas ferramentas para Linux que facilitam o uso do sistema operacional por usuários sem capacitação no mesmo, e, ao mesmo tempo, oferecer para o usuário um ambiente agradável, simples e eficaz de ser usado, além disso, totalmente gratuito e livre de vírus. O uso do sistema prevê menor uso de sistema utilizado sem licença (pirata) e o aumento da popularidade dos sistemas baseados em Linux, que atualmente ainda são muito baixos em relação ao seu concorrente Windows.
    Downloads: 0 This Week
    Last Update:
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  • Connect every part of your business to one bank account Icon
    Connect every part of your business to one bank account

    North One is a business banking app that integrates cash flow, payments, and budgeting to turn your North One Account into one Connected Bank Account

    North One is proudly built for small businesses, startups and freelancers across America. Make payments easily, keep tabs on your money and put your finances on autopilot through smart integrations with the tools you’re already using. North One was built to make managing money easy so you can focus on running your business. No more branches. No more lines. No more paperwork. Get complete access to your North One Account from your phone or computer, wherever your business takes you. Create Envelopes for taxes, payroll, rent, and anything else automatically.
    Get started for free.
  • 10
    GandiCloud
    An open source client to manage cloud hosting resources at Gandi.Net via the public API. Written in C++ with Qt4. Multi-language and cross-platform. Runs on Linux, MacOS X, and Windows.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Powerful password manager program with: - Use OpenSSL - Based on Plug-ins structure - NT Authorization - Multi-user - Make movable media - Auto fill HTML form - Remember password of applications - Backup/Restore - Import/Export (and more...)
    Downloads: 0 This Week
    Last Update:
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  • 12

    Pegotes

    Un pastebin realmente sencillo

    Pegotes es un pastebin sencillo que trata de generar el menor tráfico de red posible. Para lograrlo, cuenta con una interfaz gráfica ligera y tres APIs. Además, está traducido a siete idiomas además del español.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Pitchers Duel is a Baseball simulation focusing on the one-on-one contest between a batter and a pitcher. Will include both against-the-computer and networked interplayer variations.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Downloads: 0 This Week
    Last Update:
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  • 15
    Multilanguage on-screen keyboard for PocketPC (Windows Mobile)
    Downloads: 0 This Week
    Last Update:
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