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
    PeaZip

    PeaZip

    Free Zip software and Rar extractor

    PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.
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    Downloads: 1,673 This Week
    Last Update:
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  • 2
    DropIt

    DropIt

    A flexible tool to automate processing & organizing files and folders.

    When you need to organize files, DropIt can eliminate much of the drudgery of searching and manually opening folders and moving files around. Drop a group of different files and folders on the floating DropIt image and it sorts them to defined destination folders, compresses or extracts them, opens them with associated programs or performs other defined actions. You can define how filter your files (by name, directory, size, date, properties, content or regular expressions) and associate one of the 21 available actions to perform (Move, Copy, Compress, Extract, Rename, Delete, Split, Join, Encrypt, Decrypt, Open With, Print, Upload, Send by Mail, Create Gallery, Create List, Create Playlist, Create Shortcut, Copy to Clipboard, Change Properties and Ignore). You can also organize your associations in profiles and automatically scan monitored folders at a defined time interval.
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    Downloads: 1,252 This Week
    Last Update:
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  • 3
    OpenEMR
    OpenEMR is an open source medical practice management application (EHR EMR PMS) featuring fully integrated electronic health records, scheduling, electronic billing, internationalization, free support, a vibrant community, and a whole lot more.
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    Downloads: 919 This Week
    Last Update:
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  • 4
    winPenPack

    winPenPack

    The portable software collection

    winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
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    Downloads: 552 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.
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  • 5
    LogicalDOC Document Management - DMS

    LogicalDOC Document Management - DMS

    smart and open source document management system

    LogicalDOC is both document management and collaboration system. The software is loaded with many functions and allows organizing, index, retrieving, controlling and distributing important business documents securely and safely for any organization and individual. Gone are the days when companies used paper-based processes such as printing, mailing and manual filing of paper documents; our document management system replaces all of this with electronic procedures that allow your organization to reduce costs significantly. Check out https://www.logicaldoc.com to learn more. The design of LogicalDOC is based on best-of-breed Java technologies in order to provide a reliable DMS platform. The main interface is web-based, no need to install anything else; users can access the system through their browser. LogicalDOC CE is 100% free software and is packaged with an open source database; while it supports all major DBMS, developers still recommend MySQL for production systems.
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    Downloads: 244 This Week
    Last Update:
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  • 6
    OpenClinic GA

    OpenClinic GA

    Open Source Integrated Hospital Information Management System

    OpenClinic GA is an open source integrated hospital information management system covering management of administrative, financial, clinical, lab, x-ray, pharmacy, meals distribution and other data. Extensive statistical and reporting capabilities.
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    Downloads: 228 This Week
    Last Update:
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  • 7
    GestioIP IPAM - IP address management
    An automated, Web based IP address management (IPAM) software. It features powerful search and filter functions for both networks and host, as well as many tools (e.g. a subnet calculator) helping Administrators to plan and handle complex IP networks
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    Downloads: 105 This Week
    Last Update:
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  • 8
    Disk Cleaner
    Disk Cleaner is a tool to quickly and easily free disk space that is used by temporary files like the system temporary folder, the Internet Explorer Cache and Cookies folder, and the Recycle Bin. It can be expanded with simple text-based plug-ins.
    Downloads: 61 This Week
    Last Update:
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  • 9
    NagiosQL - Nagios configuration tool
    NagiosQL is a professional, web based configuration tool for Nagios 2.x/3.x/4.x. It is designed for large enterprise requirements as well as small environments. Any Nagios functionalities are supported.
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    Downloads: 54 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
    Cybera is an Internet cafe administration system. It works with prepaid cards or client accounts or in a post paid Self Service mode. Features include workstation control, user rights lockdown, accounting, stats and screen replication for CAI.
    Downloads: 31 This Week
    Last Update:
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  • 11
    TWiki Enterprise Collaboration Platform

    TWiki Enterprise Collaboration Platform

    Open Source Enterprise Wiki and Web Application Platform

    Enterprise collaboration platform with over 400 extensions. Users without programming skills can create web applications. 50,000 small businesses, many Fortune 500 companies, and millions of people use TWiki, with installations of 100,000s of pages. Visit http://twiki.org/ for the open source TWiki. The TWiki community is focusing on building the best collaboration platform for the workplace. We invite you to GET INVOLVED! More at http://bit.ly/twGetInv.
    Downloads: 19 This Week
    Last Update:
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  • 12
    OpenZ ERP

    OpenZ ERP

    OpenZ - Warenwirtschaft, ERP, CRM & mehr

    OpenZ hat alle Funktionen, die ein modernes ERP-System für Unternehmen des Mittelstands bereitstellen muss: Warenwirtschaft, Materialwirtschaft, Produktion, Projekte, Finanzen, ERP, CRM, Online Handel, Vertrieb, Einkauf, Einsatzplanung und viele andere mehr. Das System läuft komplett im Browser und ist damit überall und auf jedem Gerät einsetzbar. - komplette Auftragsabwicklung - Customer Relationship Management (CRM) - vollständige Lagerverwaltung mit Serien-/Chargennummerverfolgung - Projektmanagement und Kalkulation - Buchhaltung und Kontierung - Fertigung und Produktionssimulation - E-Commerce Schnittstellen zu bekannten Systemen inkl. POS via (XML, SOAP, REST, ...) - Supply Chain Management - Änderungshistorie
    Downloads: 9 This Week
    Last Update:
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  • 13
    xinco - Document Management System, DMS
    xinco [eXtensibe INformation COre] is a powerful Web-Service based Information and Document Management System (DMS) for files, text, URLs and contacts, featuring ACLs, versioning, full text search, an FTP-like client (easy install, J2EE+MySQL/PostgreSQL)
    Downloads: 8 This Week
    Last Update:
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  • 14
    Kwok Information Server
    Kwok Information Server is an open source IT management system, providing IT asset tracking (hardware inventory and software license), issue tracking (helpdesk), service contract management, vendor contact management, and knowledge base.
    Downloads: 4 This Week
    Last Update:
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  • 15
    EventGhost
    EventGhost is an automation tool for MS Windows, that can be extended through plug-ins. Please visit http://www.eventghost.net/ to find more info and the latest release.
    Downloads: 22 This Week
    Last Update:
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  • 16
    Ganib | Project Management Software

    Ganib | Project Management Software

    Open Source, tasks, bug tracking, agile scrum, timesheet, wiki

    Ganib gives simpler ways to keep your projects organized and on track. Take advantage of easy features that help you quickstart and makes your team more efficient and productive. Open source Web based online agile project management collaboration software free, J2EE platform, MySql database with project dashboards & reporting. Organized Teams & Projects: Easily plan & manage projects with intuitive features to help your team deliver on time. Quickly focus on what's important, easily select actions to take. Be efficient for everyday work, project tasks, important details, and timelines. Tasks: Set milestones, tasks, subtasks with duration and dependencies to teams better organized. Scrum: Communicate effectively with your team using scrum, wikis & discussions to make better decisions. ​ Timesheet & Tracking: Track the time spent in real time using gTrack desktop tool with desktop screenshots. Bug Tracking: Manage bugs. Demo: http://www.ganib.com
    Downloads: 4 This Week
    Last Update:
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  • 17
    LetoDMS

    LetoDMS

    Open Source Document Management System

    LetoDMS is an open-source, web-based document management system (DMS) written in PHP with a database backend. LetoDMS provides document meta-data, version control, security and easy access to your documents.
    Downloads: 5 This Week
    Last Update:
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  • 18
    Web-based hardware/software inventory management for Windows, Linux, BSD computers. H-Inventory provides incident and intervention management, user and network management, network maps, services monitoring and application deployment.
    Downloads: 4 This Week
    Last Update:
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  • 19
    DCP Setup Maker

    DCP Setup Maker

    Powerful cross-platform install builder

    Great and powerful application to generate stable and multi-platform java installers. Watch a demo of DCP Setup Maker's installer being made in 2 minutes: https://www.youtube.com/watch?v=dmF5Kyla7Hg Its intuitive UI and exceptional ease of use makes it very easy to build complex installers with large amounts of files. The whole process is done step by step through a wizard-like interface, filling in fields and setting up files to finally build your package. *Required: Java 1.6+ Powered by Java, IzPack, Apache Pivot, Apache Ant, Nuget, launch4j and Stax. Source code migrated to https://github.com/DevComPack/setupmaker
    Downloads: 15 This Week
    Last Update:
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  • 20
    Contineo is a Web-based Document Management System (DMS). Features: Folder organization, document Versioning, Bulk import, import from mailbox. NOTE: this project has been DISMISSED in favor of LogicalDOC http://sourceforge.net/projects/logicaldoc
    Downloads: 6 This Week
    Last Update:
    See Project
  • 21
    opsi

    opsi

    open source client management system, software deployment

    opsi is a Client Management System for Windows and Linux clients based on Linux servers. opsi is used for automatic OS installation, software depolyment, hard- and software inventory, distributed software depots.
    Downloads: 2 This Week
    Last Update:
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  • 22
    ThinWin
    ThinWin converts your Windows machine to a Thin Client in seconds! With ThinWin you can easily lock down a pc acting as a Thin Client. ThinWin is based on ThinXP (Complete rewrite)
    Downloads: 4 This Week
    Last Update:
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  • 23
    ispCP is a project founded to build a Multi Server Control and Administration Panel without limits. This Control Panel should be usable by any Internet Service Provider (ISP). This project is a fork of the stalled VHCS.
    Downloads: 4 This Week
    Last Update:
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  • 24
    Webacula - Web Bacula - web interface of a Bacula backup system ( bacula[dot]org )
    Downloads: 1 This Week
    Last Update:
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  • 25
    ISPBill is an ISP billing and management system. It features automatic generation and emailing of invoices, receipts and statements, a customer interface, a ticket system, and much more. ISPBill is intended to continue where cwispy left off.
    Downloads: 2 This Week
    Last Update:
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