Browse free open source System software and projects for Linux 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

    The database for AI-powered applications.

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    Secure User Management, Made Simple | Frontegg

    Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

    Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
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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: 7,834 This Week
    Last Update:
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  • 2
    CLISP - an ANSI Common Lisp
    CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
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    Downloads: 379 This Week
    Last Update:
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  • 3
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
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    Downloads: 218 This Week
    Last Update:
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  • 4
    PHP File Manager

    PHP File Manager

    phpFileManager a complete filesystem management tool on a single file.

    phpFileManager is a complete filesystem management tool on a single file. A server administration tool using PHP, meant for rapid file access, and also to verify the server configuration and security. The script can be renamed and deployed on an unique known url, and offers password protection.. All dependencies, like images, js and css files, are included inside the same file, so that the script can run even on offline devices, like a local Raspberry Pi, or ESP32 microcontroller. The size of the script is bellow 1Mb, and i want to make it even smaller. To conclude, this script is also a repository of several hand made functions, organized in sections, meant for learning PHP and explore all PHP capabilities. You can learn, copy and use them on your own projects. Help the project with a donation: Will allow the view of two phpFileManager from diferent URLs on the same screen. Like MC (Midnight Commander) does. https://www.dulldusk.com/product/donation-for-phpfilemanager/
    Downloads: 47 This Week
    Last Update:
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  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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  • 5
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 44 This Week
    Last Update:
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  • 6
    TurboPower Abbrevia

    TurboPower Abbrevia

    Advanced data compression toolkit for Delphi and C++Builder

    Abbrevia is a compression toolkit for Delphi, C++Builder, Kylix, and Free Pascal. It supports compressing and decompressing PKZIP, Microsoft CAB, tar, gzip, and bzip2 archives, and can create self-extracting executables. On Windows it also provides Delphi wrappers for the LZMA, Bzip2, and WavPack SDKs, and PPMd decompression. Abbrevia also has several visual controls that simplify displaying and manipulating archives, including treeview and listview components.
    Downloads: 45 This Week
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  • 7
    Gammu

    Gammu

    Cellular manager for mobile phones/modems

    Gammu is a cellular manager for mobile phones/modems. It contains libraries and functions for ringtones,logos,phonebook,SMS,etc. (used by external software), a command line version (with backup/restore) and SMS gateway (with MySQL and PostgreSQL supp
    Downloads: 29 This Week
    Last Update:
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  • 8
    The Smart Common Input Method platform (SCIM), is an input method platform supporting more than thirty languages (CJK and many European languages) for POSIX-style operating systems including Linux and BSD.
    Downloads: 43 This Week
    Last Update:
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  • 9
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 11 This Week
    Last Update:
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  • 10
    m23

    m23

    Your linux deployment tool!

    m23 is a free software distribution system (license: GPL), that installs (via network, starting with partitioning and formatting) and administrates (updates, adds / removes software, adds / removes scripts) clients with Debian, (X/K)Ubuntu and LinuxMint. It is used for deployment of Linux clients in schools, institutions and enterprises. The m23 server is controlled via a web interface. A new m23 client can be installed easily in only three steps. Group functions and mass installation tools make managing a vast number of clients comfortable. The integration of existing clients (with .deb-based distributions) into the system is possible, too. Client backup and server backup are included to avoid data loss. With the integrated virtualisation software, m23 can create and manage virtual m23 clients, that run on real m23 clients or the m23 server. Scripts and software packages (for installation on clients) can be created directly from the m23 web interface.
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    Downloads: 59 This Week
    Last Update:
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  • 11
    dktools - Dirk Krauses tools

    dktools - Dirk Krauses tools

    Drawing, graphics conversion, software development, administration.

    GUI and command line tools for advanced users and administrators: wxdkdraw - Minimalistic drawing application for use with LaTeX, wxd2lat - Convert wxdkdraw files to LaTeX, bitmap2pp - Convert PNG/JPEG/TIFF/NetPBM to (E)PS or PDF, fig2lat - Convert XFig files to LaTeX, htmlbook - publish HTML like a book, dkcpre - C debugging and tracing preprocessor, itadmin - manage your IT using a MySQL/MariaDB database, dk-fic - file integrity checker, dk-ls - list files, output column order is configurable, dk-cat, dk-sort, dk-lines - text tools for *x and Windows, dk-send, dk-recv - transmit data stream, dk-t2h, dk-t2l - text to HTML or LaTeX conversion.
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    Downloads: 29 This Week
    Last Update:
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  • 12
    GPU,  a Global Processing Unit

    GPU, a Global Processing Unit

    A framework for distributed computing

    An extensible framework for distributed computing on P2P grids. We support peaceful free and open research and build an internet supercomputer. We render movies, solve Eternity puzzles, predict climate and improve a ~30 GHz cluster of clients.
    Downloads: 14 This Week
    Last Update:
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  • 13
    Ubuntu-Business-Desktop (LXC)

    Ubuntu-Business-Desktop (LXC)

    Ubuntu LXQT - LXC Template for Proxmox

    This is a LXC-Template witch can be used for a company or private. It's an adapted Ubuntu with x2go-Terminalserver and Webmincontrol. It's easy to control the system with webmin. You never must use the terminal. Try it!
    Downloads: 12 This Week
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  • 14
    The purpose of this project is to provide a convenient Java implementation for Future Technology Devices International Inc.'s (http://ftdichip.com) FTD2xx library. This library is used to access and control FTDI's USB to serial converter chips via USB.
    Downloads: 6 This Week
    Last Update:
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  • 15
    Remote Subversion repository dump
    Downloads: 6 This Week
    Last Update:
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  • 16
    PdfgrepGui

    PdfgrepGui

    This is a simple GUI for the command line tool grep and pdfgrep

    This program is a GUI for the command line tool grep and pdfgrep. Pdfgrep search text in multiple PDF files and grep can serach text in multiple text files. You can use regular expressions for the search (https://en.wikipedia.org/wiki/Regular_expression). This GUI and the command line tools work without indexing. The following options are used: -i (ignore case) and -F (fixed strings), -n (Print page number or output lines) and -H (Print the file name for each match) from the command line tool. The -r option will be done by the program itself. Performance: This GUI works well when searching in several hundreds of documents (depends on the speed of your computer and the length of the documents). Config Dir: [homedir]/.config/pdfgrepgui Available Languages: - English - German You can add your own language by editing the file [homedir]/.config/pdfgrepgui/language.set
    Downloads: 17 This Week
    Last Update:
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  • 17
    MyOpenLab
    The most recent distribution of MyOpenLab can be downloaded from: myopenlab.org Follow us on Facebook as MyOpenLab Colombia https://www.facebook.com/myopenlabcolombia/ Subscribe, like and watch our MyOpenLab videos: https://www.youtube.com/channel/UCet6UPnaHKGjtbytJHIf2jQ Thanks!
    Downloads: 7 This Week
    Last Update:
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  • 18

    svn-access-manager

    Administer Subversion repository access rights easily

    SVN Access Manager is a powerful tool for managing access to subversion repositories. The tool provides user and group management and access rights (read/write) to dedicated paths in a repository as well.
    Downloads: 4 This Week
    Last Update:
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  • 19
    WHMCS VPS Reseller

    WHMCS VPS Reseller

    Cloud VPS Reseller Provisioning Module for WHMCS

    Best WHMCS VPS Reseller Module on Marketplace Integrate with ready-made WHMCS module to leverage auto-provision of Cloud VPS servers from your private-label cloud controller. By integrating with Rad Web Hosting VPS Reseller module, your VPS procurement headaches are over. Your Own Virtual Private Datacenter You instantly have access to your own Virtual Private Cloud VPS cluster-with automated server provisioning available direct from your WHMCS and delivered by you to your end-users. With on-demand VPS provisioning and a full suite of applications and included OS templates, you'll greatly reduce the time-to-market-all without the hassle and costs of building your own cloud data center from scratch. Become Cloud Leaders Your end users will not only have VPS administration abilities from the WHMCS interface, thanks to our VPS Reseller provisioning module, but they can also access incredible feature-rich white-label VPS control panel.
    Downloads: 4 This Week
    Last Update:
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  • 20
    Zilog Z80

    Zilog Z80

    Z80 shared library including some nice test-projects

    Another Zilog Z80 emulation. C++ class on a shared library. Simulates all pins of the Z80-Chip in a single function interface. Additionally are some Test-Projects added. 1. CP/M 2.2 emulator connectable by an telnet client. 2. An instruction set examiner. 3. An ZX-80 emulator. 4. An TK-80 emulator 5. An Z80 Dis-assembler driver for all supported instructions.
    Downloads: 4 This Week
    Last Update:
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  • 21
    iF.SVNAdmin
    The iF.SVNAdmin application is a web based GUI to your Subversion authorization file. It is based on PHP 5.3 and requires a web server (Apache) to be installed. (+ LDAP integration; no database required)
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    Downloads: 7 This Week
    Last Update:
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  • 22
    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: 5 This Week
    Last Update:
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  • 23
    virtual-ubuntu

    virtual-ubuntu

    Ubuntu (64 bit) OVA, VDI

    Ubuntu (64 bit) OVA, VDI VBoxGuestAdditions: Installed Password: passwort virtual-ubuntu powered by juergenrohn
    Downloads: 5 This Week
    Last Update:
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  • 24
    The JavaBluetooth Stack is a 100% Java implementation of the Bluetooth Specifications Version 1.1. It uses the javax.comm package to address the Bluetooth chip, and implements the JSR-82 (javax.bluetooth) API. Deployment on TINI is possible.
    Downloads: 2 This Week
    Last Update:
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  • 25
    OpenAOS is a open source project of a platform independent and distributed service for accessing measurement data over a standarisized interface (ASAM ODS) defined by ASAM e.V. (for details please visit standards at www.asam.net).
    Downloads: 3 This Week
    Last Update:
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