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.

  • 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.
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  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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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: 8,823 This Week
    Last Update:
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  • 2
    Aries is an easy to use and feature rich text editor which effectively allows users to modify documents rapidly with powerful features such as Rich Text editing, photo file manipulation, touch screen feature, full screen editing etc.
    Downloads: 0 This Week
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  • 3
    CyBerFuN xBTiT
    CyBerFuN xBTiT by cybernet2u / I only install hacks and maintain them / all the credits for the core source goes to : http://www.btiteam.org new files here ->https://github.com/cybyd/cybyd
    Downloads: 0 This Week
    Last Update:
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  • 4
    FileX is GUI based HEX editor with advanced functionality.
    Downloads: 0 This Week
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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  • 5
    Java Web Application Intrusion Monitor
    JWAIM is a security framework for Java Web Applications. It provides modules and interfaces to add monitoring, firewall and IPS capabilities in the application server.
    Downloads: 0 This Week
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  • 6
    PHP installer, plus GTK installer, plus PHP-GTK installer : all in one - although each one may be installed separately - for MS-Windows users.
    Downloads: 0 This Week
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  • 7
    vmm - a virtual mail manager

    vmm - a virtual mail manager

    command line tool to manage email (alias-)domains/accounts/aliases …

    vmm is the easy to use and configurable command line tool for administrators and postmasters, to manage domains, alias-domains, accounts and relocated mail users. It allows the fast and easy management of mail servers. vmm is written in Python. It's designed for installations using Dovecot and Postfix with a PostgreSQL backend.
    Downloads: 0 This Week
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