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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.

  • Full Control for Complex IT - Try PRTG Now Icon
    Full Control for Complex IT - Try PRTG Now

    Gain deeper insights and proactive alerts for your entire network. PRTG empowers you to optimize uptime and prevent costly outages.

    As an IT monitoring expert, you need more than basic alerts - you need actionable data and full transparency. PRTG gives your team a single pane of glass for all systems, devices, and applications, with customizable dashboards and granular user management. Detect issues before they escalate, automate reporting, and ensure compliance with SLAs. PRTG’s scalable engine and advanced analytics help you optimize resources, reduce manual effort, and keep your organization running smoothly. Take control of your IT landscape and make smarter decisions with real-time, enterprise-grade monitoring.
    Activate Your PRTG Trial Today
  • Create and run cloud-based virtual machines. Icon
    Create and run cloud-based virtual machines.

    Secure and customizable compute service that lets you create and run virtual machines.

    Computing infrastructure in predefined or custom machine sizes to accelerate your cloud transformation. General purpose (E2, N1, N2, N2D) machines provide a good balance of price and performance. Compute optimized (C2) machines offer high-end vCPU performance for compute-intensive workloads. Memory optimized (M2) machines offer the highest memory and are great for in-memory databases. Accelerator optimized (A2) machines are based on the A100 GPU, for very demanding applications.
    Try for free
  • 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: 6,883 This Week
    Last Update:
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  • 2
    Rufus

    Rufus

    Utility to create bootable USB flash drives

    Rufus is a standalone app designed to format and create a bootable USB drive for a large variety of ISOs. The app is just over 1MB in size and is notably faster than similar competitor apps such as the Windows 7 USB utility, Universal USB Installer, and UNetbootin. Rufus can come in handy when you need to simply format a USB drive, install an OS on a machine that lacks a CD/DVD-ROM drive, or when you need to boot an operating system temporarily without intentions of actually installing the media. This can be immensely useful while you're on the go or just need access to an OS for a temporary, isolated reason. The app can even be used to flash firmware to BIOS or other destinations by just using DOS. Even though Rufus is a tiny utility in comparison to other USB creation tools that can be rather bulky in size, it contends easily with the competition and creates bootable USB drives in record time!
    Downloads: 1,391 This Week
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  • 3
    BleachBit

    BleachBit

    deletes junk files to free disk space and improve privacy

    BleachBit frees disk space and maintains privacy. Cleans cache, Internet history, temporary files, logs, cookies, Firefox, Google Chrome, Flash, Windows, Linux, and more. Downloads are at www.bleachbit.org and source code is at GitHub.
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    Downloads: 1,473 This Week
    Last Update:
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  • 4
    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: 1,095 This Week
    Last Update:
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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.
    Learn More
  • 5
    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: 980 This Week
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  • 6
    Snappy Driver Installer
    Snappy Driver Installer is an application for installing/updating drivers on PCs running Microsoft Windows using driverpacks or included folders with drivers. It can be used to install drivers on newly assembled PCs at places where Internet isn't available. Users can also use the software to keep their drivers up to date.
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    Downloads: 331 This Week
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  • 7
    Classic Shell

    Classic Shell

    Start menu and Windows enhancement software

    Classic Shell adds some missing features to Windows 7, 8, 8.1 and Vista like a classic start menu, toolbar for Explorer and others. Note: The software available here is not the latest version. Visit the new website www.classicshell.net to download the latest version and to access the new forums and documentation.
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    Downloads: 288 This Week
    Last Update:
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  • 8
    Zabbix

    Zabbix

    Enterprise-class, distributed monitoring solution for networks & apps

    Zabbix is an enterprise-class open source distributed monitoring solution designed to monitor and track performance and availability of network servers, devices and other IT resources. It supports distributed and WEB monitoring, auto-discovery, and more. An enterprise-class distributed monitoring solution for networks & apps
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    Downloads: 185 This Week
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  • 9
    Katalog

    Katalog

    Catalog and Search files from permanent or removable drives

    Katalog is a desktop application to manage catalogs of disks and files: - Create catalogs from different sources or devices, - Search files even when the devices are disconnected, and find duplicates or differences - Organize your Collection of catalogs, Storage devices, and Virtual storage devices and get Statistics, - Data is stored in csv (tab separated) files for full control by the user, - Available in multiple languages - OpenSource and cross-platform (Linux Plasma and Windows 64 installer or portable). First use / tips - Simply start with the Create screen. Create your first catalog and experiment! - All data/catalog files are stored in the Settings/Collection folder. Documentation/Wiki: https://stephanecouturier.github.io/Katalog/ Follow Katalog on Facebook: https://www.facebook.com/Katalog-107117844916308 Follow active development: https://github.com/users/StephaneCouturier/projects/7
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    Downloads: 124 This Week
    Last Update:
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  • Find out just how much your login box can do for your customer | Auth0 Icon
    Find out just how much your login box can do for your customer | Auth0

    With over 53 social login options, you can fast-track the signup and login experience for users.

    From improving customer experience through seamless sign-on to making MFA as easy as a click of a button – your login box must find the right balance between user convenience, privacy and security.
    Sign up
  • 10
    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: 117 This Week
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  • 11
    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: 3 This Week
    Last Update:
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  • 12
    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: 18 This Week
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  • 13
    Thunderbird-Tray is a system tray launcher tool for Mozilla Thunderbird, the popular e-mail client. You can use TB-Tray to hide Thunderbird to the tray while you don't need it. When you click the tray icon, TB-Tray will restore Thunderbird.
    Downloads: 4 This Week
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  • 14
    AUSTRUMI is a business card size (50MB) bootable Live CD Linux distribution.
    Downloads: 2 This Week
    Last Update:
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  • 15
    TEA is a text editor that provides a wide range of text-processing functions (over 100) and the syntax highlighting. There are two branches of TEA: Qt-based and GTK-based.
    Downloads: 8 This Week
    Last Update:
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  • 16
    RainLoop Webmail (PHP)

    RainLoop Webmail (PHP)

    Simple, modern & fast web-based email client

    Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
    Downloads: 3 This Week
    Last Update:
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  • 17
    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: 1 This Week
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  • 18
    Multilanguage on-screen keyboard for PocketPC (Windows Mobile)
    Downloads: 1 This Week
    Last Update:
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  • 19
    psxdev.ru is home of the following projects: HLPSE (HLE PSX Emulator), HLPSD (HLE PSX DisASM), HLPStEst (HLE PSX Emulator (obsolete)), TIMGRAB (TIM extractor).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Batch Renaming Utility - GUI and console tool for batch renaming using user defined templates. User templates can contain 'user tags`to extract `file ACM DateTime, Exif and Id3 information. bren - is written using wxWidgets framework.
    Downloads: 0 This Week
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  • 21
    PlayStation emulator from Russia written in pure ASM. Features DynaRec core and some HLE stuff. Uses PSEmuPro compatible plugins for most of the stuff.
    Downloads: 0 This Week
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  • 22
    Downloads: 0 This Week
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  • 23
    File catalogue which scans paths and saves directory structure to the database.
    Downloads: 0 This Week
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  • 24
    "Virtual Infrastructure for Applications and Services Over IP" ViaSIP_NG using latest OpenCloudComputing recommendations to develop Scalable Private-Public cloud platforms. ViaSIP is leveraging ODS - LinkedData, CouchDB, Eucalypus, DatR.ws & Web2Py.
    Downloads: 0 This Week
    Last Update:
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