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.

  • 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.
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  • 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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  • 1
    NSIS: Nullsoft Scriptable Install System

    NSIS: Nullsoft Scriptable Install System

    Windows installer development tool

    NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
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    Downloads: 7,352 This Week
    Last Update:
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  • 2
    MyPhoneExplorer

    MyPhoneExplorer

    Simply explore your Android phone!

    Connect your phone via WiFi, cable or bluetooth and you'll be surprised how easy and efficient it will be to manage your Android based smartphone with our software. Since it's first release MyPhoneExplorer evolved into the most popular freeware tool for smartphones. The software is constantly updated with new features. In opposite to many other solutions MyPhoneExplorer does work complete locally without using any third-party server!
    Downloads: 6,610 This Week
    Last Update:
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  • 3
    UltraDefrag

    UltraDefrag

    Increase your system performance with this easy to use tool

    Please note, here you can find the latest open source release of UltraDefrag (7.1.4). The most recent UltraDefrag release (14.0.0) can be found on our official website: https://ultradefrag.net UltraDefrag is a disk defragmenter for Windows, which supports defragmentation of locked system files by running during the boot process. It is easy to use without any complicated scripting or a huge load of configuration settings. You can filter the files processed by size, number of fragments, file name and path. You can terminate the process early by specifying an execution time limit.
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    Downloads: 1,032 This Week
    Last Update:
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  • 4
    luckyBackup

    luckyBackup

    ...a powerful, fast and reliable backup & sync tool.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ windows users, note that luckybackup is originally developed for linux and the windows port (version) is under heavy development at the moment. Feedback is more than welcome and will be appreciated, but please consider the above before you provide a negative review. windows dedicated forum: https://sourceforge.net/p/luckybackup/discussion/2264489/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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    Downloads: 96 This Week
    Last Update:
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  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 5
    SimplyBurns

    SimplyBurns

    Burns CD / DVD media.

    SimplyBurns is a Mac OS X application with a GUI, which allows the user to burn CD / DVD media.
    Downloads: 47 This Week
    Last Update:
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  • 6
    GeoNetwork opensource - Metadata Catalog
    A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/
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    Downloads: 170 This Week
    Last Update:
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  • 7
    Krusader is a twin-panel (commander style) filemanager for KDE. It supports mime-type, complete drag n' drop, multiple filesystems, archives, bookmarks etc. Krusader's GUI is intuitive, and allows an easy access to all of your file-management needs.
    Downloads: 8 This Week
    Last Update:
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  • 8
    phpMyAdmin

    phpMyAdmin

    A software tool to bring MySQL to the Web

    phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add columns, execute any SQL statement, manage indexes on columns.
    Downloads: 2 This Week
    Last Update:
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  • 9
    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: 11 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
    TCDR is a ncurses (dialog) based console frontend for the following programs: mkisofs, cdrecord, cdrdao, cdda2wav, cdparanoia, readcd, dd, isoinfo, sox, mpg123 and bladeenc written in bash.
    Downloads: 1 This Week
    Last Update:
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  • 11

    IS The records of patients

    information system "The records of patients"

    This paper describes the information system "The records of patients" (acronym - ISEP), as a proposal for the possible solution of the information system to be used in the organization of medical work at the level of Bosnia and Herzegovina.
    Downloads: 0 This Week
    Last Update:
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  • 12
    Kurisu OS 3.0

    Kurisu OS 3.0

    Kurisu OS 3.0

    Kurisu OS 3.0 es un sistema operativo basado en OpenSUSE 12.1,que trae consigo ventajas como la posibilidad de instalación y utilización de aplicaciones de varias plataformas: Windows, Linux,Mac (Mac todavía en fase experimental).Ademas es un sistema sencillo y accesible que cualquier persona sin grandes conocimientos puede usar,ya que utiliza GNOME 3 una interfaz de usuario sencilla y practica la cual se adapta no solo a tus necesidades de usuario sino que además se adapta a la edad y potencia de tu ordenador permitiendote usar 2 escritorios,uno para ordenadores actuales que reunen unas caracteristicas que le permiten utilizar un escritorio hermoso con las ultimas tecnologías de aceleración de gráficos y un escritorio para rescatar ese viejo ordenador que tenias olvidado en tu garaje,ya que el escritorio alternativo te permite usar menos recursos.
    Downloads: 0 This Week
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  • 13
    OpenBroad is a streaming client/server system, minded for sharing music, interviews etc. among radiostations.
    Downloads: 0 This Week
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  • 14
    OpenMosix Sim is a simulation of the algorithm used for process distribution in OpenMosix kernel. The algorithm is simplified.
    Downloads: 0 This Week
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  • 15
    Downloads: 0 This Week
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  • 16
    Web-based tool for developers and administrators to access into Oracle. Written in PHP to allow view,manage and export Oracle objects (tables, view,index,package, procedure, trigger..) over WWW (like phpMyAdmin, phpOraAdmin or funkctions like TOAD)
    Downloads: 0 This Week
    Last Update:
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