Browse free open source Java Operating Systems and projects below. Use the toggles on the left to filter open source Java Operating Systems by OS, license, language, programming language, and project status.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • Auth for GenAI | Auth0 Icon
    Auth for GenAI | Auth0

    Enable AI agents to securely access tools, workflows, and data with fine-grained control and just a few lines of code.

    Easily implement secure login experiences for AI Agents - from interactive chatbots to background workers with Auth0. Auth for GenAI is now available in Developer Preview
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  • 1
    Xiaomi.eu Multilang MIUI ROMs

    Xiaomi.eu Multilang MIUI ROMs

    OFFICIAL mirror of MIUI Multilang ROM by https://xiaomi.eu/

    Included languages: English (en.miui.com, xiaomi.eu) Chinese (miui.com) Polish (Acid, miuipolska.pl) Slovak (ingbrzy, https://miuios.cz) Czech (VMach, https://miuios.cz) Bulgarian (Global) Hungarian (vagyula, miui.hu) French (Global) Swedish (Global) Russian (Global) Ukrainian (Global) Belorussian (Global) Croatian (Masva, MIUI Adria) Vietnamese (Belmont-Gabriel) Italian (miui.it) Greek (Global) Norwegian (Global) Dutch (cueie, mannyribo, redmaner) Spanish (nosijf982) Turkish (suatsari) Brazilian-Portuguese (Global, Feurrado, Lobianco) Portuguese (KcNirvana, Lippe35) Hebrew (Global) Romanian (ashtefan) German (muhamed89, cp82, dahool2016, and more) Catalan (deivids84) Korean (cjhyuky, bradly1, xiaomiqm) Slovenian (bostjan2016) Serbian (dudjaa) Thai (Global) Finnish (dogiex) Arabic (Global) Japanese (ScratchBuild) Burmese (Global) Danish (Global)
    Leader badge
    Downloads: 25,773 This Week
    Last Update:
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  • 2
    Arrow OS

    Arrow OS

    It is an AOSP based project with an aim of keeping things clean!

    ArrowOS is an AOSP based open source project started with the aim of keeping things simple, clean and neat, both for the Android system and users. We understand the pain of unnecessary and sometimes rarely used mods/features being shipped with custom roms nowadays which may end up causing battery drains and/or memory leaks. This is being strictly avoided on our side keeping everything to a bare minimum, delivering the stable performance all the time without destroying the AOSP interface. With users getting more used to tweaks and features, we added just the right stuff that will be actually USEFUL at the end of the day.
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    Downloads: 976 This Week
    Last Update:
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  • 3
    LinuxonAndroid

    LinuxonAndroid

    A range of linux distros for your Android device

    This projects aim is to bring a range of linux distros to your android device through a method known as 'chroot', see it has running a linux distro within a virtual machine on your phone. You can access this virtual machine and run it on your phone without causing any damage to your device, or having to overwrite anything. Why might you want this? well my apps are designed to make the install and set up process as easy as possible (more so in the paid apps) while still giving you some flexibility. Once you have the distro up and running then you can pretty much run and install any linux software you like (so long as there is a arm port or it is not architecturaly dependent).
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    Downloads: 186 This Week
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  • 4
    Leader badge
    Downloads: 168 This Week
    Last Update:
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  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 5
    Mobilinux - Linux for Android

    Mobilinux - Linux for Android

    This application will allow you to install and run Linux on Android !

    The app supports ROOTED as well as NOROOTED devices. Use your mobile as a Pocket PC !! For Root Method: The application creates a disk image on a flash card, mounts it and installs an OS distribution. Applications of the new system are run in a chroot environment and working together with the Android platform. All changes made on the device are reversible, i.e. the application and components can be removed completely. Installation of a distribution is done by downloading files from official mirrors online over the internet. The application requires superuser rights (ROOT).Installing a new operating system takes about 15 minutes. The recommended minimum size of a disk image is 1024 MB (with LXDE), and without a GUI - 512 MB. Noroot Method: Install MOBICONSOLE addon and then install the linux on a non-rooted phone.
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    Downloads: 136 This Week
    Last Update:
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  • 6
    NamelessROM

    NamelessROM

    Custom ROM for Android

    NamelessRom is opportunity; an opportunity to have a voice to the development team of the after-market firmware that you run on your device. The main goal of NamelessRom is to provide quality development for android devices, phones, and tablets alike. NamelessRom developers are available nearly 24/7 and respond to bug reports and feature requests almost instantly. This availability will allow you, the end-user, to have direct input into exactly what features and functions are included on the firmware that YOU run. NamelessRom == endless possibilities. Unless you have an iPhone, then you're out of luck. Get more information and find support on our forums at https://nameless-rom.org
    Downloads: 119 This Week
    Last Update:
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  • 7
    The Fresh Project

    The Fresh Project

    Simply Awesome.

    The official home of Fresh, a One UI-based custom firmware for Samsung devices.
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    Downloads: 85 This Week
    Last Update:
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  • 8
    JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.
    Downloads: 14 This Week
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  • 9
    Life

    Life

    Linux for Education based on Ubuntu MATE

    Li-f-e: Linux for Education. A free Linux distribution for education.
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    Downloads: 28 This Week
    Last Update:
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  • Test your software product anywhere in the world Icon
    Test your software product anywhere in the world

    Get feedback from real people across 190+ countries with the devices, environments, and payment instruments you need for your perfect test.

    Global App Testing is a managed pool of freelancers used by Google, Meta, Microsoft, and other world-beating software companies.
    Try us today.
  • 10
    CyanogenMod 13

    CyanogenMod 13

    Android Marshmallow for MSM8930 Samsung Devices

    Pure CyanogenMod 13
    Downloads: 20 This Week
    Last Update:
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  • 11
    BackSlash Linux

    BackSlash Linux

    Linux based operating system with OOBE - comprises of FOSS.

    BackSlash Linux will no longer receive updates. BackSlash Linux is going to discontinued as of Sept 15, 2021 for a good reason. There is an article on the main page of https://www.backslashlinux.com which will explain the reason of the discontinuation of the project and future plans. I thank you all for the love and support.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 12
    Victara_Universe
    Project to support Motorola Moto X 2014 And Other supported devices by Victara_Universe Team!
    Leader badge
    Downloads: 9 This Week
    Last Update:
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  • 13
    DCMLinux - Dicom Linux Distribution

    DCMLinux - Dicom Linux Distribution

    Dicom PACS solution for free.

    DCMLinux is a complete PACS system, free of charge. Its core is an Ubuntu 14.04 system fully updated and it contains the DCM4CHEE as its PACS server. In the near future it will contain many other addons such as Weasis, Oviyam, Care2x, etc. Just download the iso, burn it to a CD and boot it up. No need to configure any files of dcm4chee, DCMLinux installer asks for everything it needs to configure a running PACS in minutes. Project Wiki : http://wiki.dcmlinux.org Project Forums: http://forums.dcmlinux.org
    Downloads: 4 This Week
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  • 14
    Pardus Topluluk Sürümü

    Pardus Topluluk Sürümü

    Pardus Topluluk Sürümü - Pardus Community Edition

    Pardus Topluluk Sürümü Nedir? Pardus Topluluk Sürümü, TÜBİTAK/ULAKBİM’den bağımsız olarak geliştirilen bir GNU/Linux dağıtımıdır. TÜBİTAK/ULAKBİM’den isim hakkı için izin alınmıştır. Topluluk sürümü ile herkese hitap eden, kolay kurulan, çok dilli ve kendine özgü araçlara sahip bir dağıtım yapılması hedeflenmektedir. Çalışmalarda Debian GNU/Linux alt yapısı kullanılmaktadır. What is Pardus Community Edition? Pardus Community Edition, is a GNU/Linux distribution which is being distributed independent from TÜBİTAK/ULAKBİM. Permissions to use the “Pardus” name have been obtained from TÜBİTAK/ULAKBİM.
    Downloads: 4 This Week
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  • 15
    Citrus-CAF

    Citrus-CAF

    Android Custom ROM based on CAF source

    Downloads: 4 This Week
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  • 16
    Portable Linux

    Portable Linux

    Portable Ubuntu Linux for Scientific Computing

    Released August 22, 2013 Lubuntu Blends: Biochemistry 13.04 (Raring) v5.44 Linux Kernel Image 3.8.0-29 Lubuntu Blends are pre-installed Wubi disk image remixes of Ubuntu and Debian Science meta packages, A custom boot loader allows installations to be copied and automatically booted from most external or USB flash drives. Once up and running, use earlier Lubuntu Remix README instructions here until documentation is updated. https://sourceforge.net/projects/portable-linux/files/ Installation 1. Download the Wubi installer http://releases.ubuntu.com/saucy/wubi.exe 2. Install any flavor of Ubuntu. 3. Swap out the root.disk with the ones provided here. Overview LAMP stack running on localhost (127.0.0.1). Scientific, productivity & media packages include R (Rattle Data Miner), GridEngine, Condor, cooperative computing tools, WINE, LibreOffice, Evolution, Clinica, Neuro Debian Desktop, PsycoPy, OpenVibe, 3DSlicer, Paraview, Openshot. Cheers, Gregory Remington
    Downloads: 2 This Week
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  • 17
    BackDroid

    BackDroid

    Android Custom ROM for Network Testing.

    The possibilities are endless with a Penitration Test. That is just something you can do with this though.
    Downloads: 3 This Week
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  • 18
    Downloads: 3 This Week
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  • 19
    SLAX based LiveCD showcasing Sun Microsystem's open source project "Project Looking Glass 3D" (LG3D). Presented in 2004 LG3D combines a stunning 3D UI with the benefits of Java (easily expandable and reusable code, platform independency, etc.).
    Downloads: 1 This Week
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  • 20
    android4desktop

    android4desktop

    Android for Desktop

    Its Android for Desktops. 100% free. Live + Installable ISO image Current version - Android 4.4.4 Click - https://sourceforge.net/projects/android422x86/ for a android jellybean version with UEFI support
    Downloads: 1 This Week
    Last Update:
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  • 21

    androidx86-openstack

    Android virtual machines running on Openstack Clouds

    This is the first ever project that ports Android OS into an image that can be used to create Android virtual machines running on Openstack clouds with full virtualisation support. Currently we only support Android 4.4 Kitkat 64bit distribution. Instructons on how to create the image yourself: http://thisismyeye.blogspot.co.uk/2014/04/enabling-virtio-drivers-on-kernel-for.html This image is not perfect yet. Contributors are welcome! This work is done by Chathura Madhusanka Sarathchandra Magurawalage as a part of his research activities at Network Convergence Laboratory (NCL), University Of Essex Related Research Projects: *EU-funded FP7 Project MONICA (Mobile Cloud Computing: Networks, Services and Architecture). *EU-funded FP7 Project CLIMBER (Cross-Layer Investigation and Integration of Computing and Networking Aspects of Mobile Social Networks). *EU-funded FP7 Project EVANS (End-to-end Virtual Resource Management..)
    Downloads: 1 This Week
    Last Update:
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  • 22
    umi-project

    umi-project

    Just bring Linux for a better world

    U M I, pronounce "ou" "ème" "aie" to an approach of "you & I" expression, is meant to be a derivative of Ubuntu, a Linux distribution. U M I is a system that wants generalist, simple and tailored to your needs. M I perhaps as "Maths Infos", "Mission Impossible", "Micro Imagination", "Museum Incarnation", ..., "Mandela Ideologie", ...,"Magne Isapèt" :), ... ; but in reality M I for "Me Inside", inside Linux, inside Debian, inside Ubuntu. This project designates all logistics associated developments. The goal is to promote the development of secure and robust software combining beauty and elegance for Linux platforms .
    Downloads: 1 This Week
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  • 23
    AOSB Project
    Sources: https://github.com/AOSB/ Changelogs: http://probam.net/changelog/ Download: http://probam.net/android-kikat-/
    Downloads: 0 This Week
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  • 24
    Downloads: 0 This Week
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  • 25
    Ajax Portal (WebOS and Portal)
    Ajax Portal (WebOS & Enterprise Portal). Ajax Portal is open source cross-platform cross-browser Web 2.0 / Web 3.0 solution which is based on a new architecture of WebOS and Enterprise Portals. Our Enterprise Portal can work as Mashup (WOA approach). The portal provides Portlet/Portal API, Services. It's posible to use the Decoration module of the portal as a part of the standard Web application (Web 2.0 / Web 3.0 application). Open Source allows you to try and evaluate our Web 2.0 / Web 3.0 Enterprise Ajax Portal for free.
    Downloads: 0 This Week
    Last Update:
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