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

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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: 12,724 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: 892 This Week
    Last Update:
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  • 3
    Evolution X

    Evolution X

    Pixel UI, Customization & More. We Are Evolution X!

    Evolution X aims to provide users with a Pixel-like feel at first glance, with additional features at your disposal.
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    Downloads: 2,035 This Week
    Last Update:
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  • 4
    Octavi-OS

    Octavi-OS

    fast mirror online soon

    An AOSP based custom rom with new look and feel and massive customisations , contains everything you need .
    Downloads: 76 This Week
    Last Update:
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    AI-powered service management for IT and enterprise teams

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  • 5
    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: 187 This Week
    Last Update:
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  • 6
    xdroidOSS

    xdroidOSS

    a Android Open Source Project with mnmlistUI additions.

    xdroid is an AOSP-based custom Android ROM which is focusing on simple and minimalism while keeping the smoothness and optimization provided by AOSP.
    Downloads: 44 This Week
    Last Update:
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  • 7
    RevOS-MIUI

    RevOS-MIUI

    MIUI Custom ROM for Xiaomi Devices

    For Changelog, full characteristics, etc see on website.
    Downloads: 23 This Week
    Last Update:
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  • 8

    PixelOS ROM Redmi Note 11 (spes/spes)

    Prebuilt PixelOS ROM for Redmi Note 11 (spes/spesn).

    This project hosts a custom-built PixelOS ROM for the Redmi Note 11 (spes/spesn). The ROM is based on Android 14 and includes performance optimizations, security patches, and custom features tailored for the Redmi Note 11 series. Users can flash this ROM to experience the PixelOS environment on their devices.
    Downloads: 29 This Week
    Last Update:
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  • 9
    Fluid

    Fluid

    Fluid is an android aftermarket custom rom aiming to redefine ui.

    Fluid provides a minimal UI with some customization. We're based mostly on AOSP with additions from LineageOS. Our telegram channel: t.me/projectfluid
    Downloads: 19 This Week
    Last Update:
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  • 10
    Cambridge Z88

    Cambridge Z88

    Software development for 4Mb portable, using Z80 CPU and AA batteries

    This project is for the portable computer "Cambridge Z88", produced by Sir Clive Sinclair (of ZX Spectrum fame). We continue to support software development (ROM, 3rd party apps on memory cards and desktop applications). We have moved to https://cambridgez88.jira.com/wiki (development, source code and documentation). However, we continue to publish files for download here.
    Leader badge
    Downloads: 32 This Week
    Last Update:
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  • 11
    dotOS 2.x - O

    dotOS 2.x - O

    dotOS 2.x a Fast, Unique and Beautiful rom based on android oreo

    Droid On Time OS - dotOS dotOS is a Custom Android Firmware based on Android Open Source Project . It is made in a way to look great in terms of the UI and also in term of performance in order to unleash the device's true potential.
    Downloads: 25 This Week
    Last Update:
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  • 12
    WitAqua

    WitAqua

    Android Custom ROM based on LineageOS

    We make WitAqua in Japan. It's an Android Custom ROM based on LineageOS.
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    Downloads: 8 This Week
    Last Update:
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  • 13
    Victara_Universe
    Project to support Motorola Moto X 2014 And Other supported devices by Victara_Universe Team!
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    Downloads: 3 This Week
    Last Update:
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  • 14
    A Grid Security Interface (GSI) enabled SSH terminal application based on the SSHTools suite. Users can use GSI-SSHTerm as an easy way of connecting to the Grid.
    Downloads: 1 This Week
    Last Update:
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  • 15

    CLEiM

    Cross Lingual Education in Medicine

    CLEiM (Cross Lingual Education in Medicine) is an opensource version of an Intelligent System which extract concepts from medical texts and provides qualified information. It integrates information from various sources. This system has been developed by the Intelligent System Group GSI (http://www.esi.uem.es/gsi/) at UEM University. We do NER (Named Entity Recognition) based on GATE platform. The installation is simple, you can use it as a Web application. It has been tested under apache-tomcat. The original system has been successfully used to carry out active learning activities with medical students. However, it could be interesting in much more knowledge fields.
    Downloads: 0 This Week
    Last Update:
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  • 16
    Citrus-CAF

    Citrus-CAF

    Android Custom ROM based on CAF source

    Downloads: 0 This Week
    Last Update:
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  • 17
    A Java library as a tool to interact with a Robocup Soccer Server. It enables to play soccer with an Artificial Intelligence multi-agent team based on intelligence and decision algorithms coded in JESS language.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Application to help the localization of OpenOffice.org GSI text files
    Downloads: 0 This Week
    Last Update:
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  • 19
    Government (Generic) Services Infrastructure (GSi) is a unified technology platform which empowers business processes to be modeled, deployed, executed and managed in an intuitive and efficient manner.
    Downloads: 0 This Week
    Last Update:
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  • 20
    GridDICOM is a GSI-enhanced Java DICOM (Digital Imaging and Communication in Medicine) implementation for GSI (Globus)-based grid infrastructures. It can be used to acchieve a direct and secure DICOM communcation in health grids.
    Downloads: 0 This Week
    Last Update:
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  • 21

    MazWoz EVO ROM

    Android ROM for EVO

    Android ROM for HTC EVO 4G ICS
    Downloads: 0 This Week
    Last Update:
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  • 22
    OPEN GENERAL SCIENTIFIC INTERFACES
    OPEN GENERAL SCIENTIFIC INTERFACES homepage : http://www.opengsi.org
    Downloads: 0 This Week
    Last Update:
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  • 23
    SuperOSR

    SuperOSR

    Customized Android Rom.

    SuperOSR is a customized Android version for select devices. Is a replacement for the firmware or "ROM" installed on your smartphone, tablet, media center or another Android device. Is based on the Android Open Source Project and the open source community over the world.
    Downloads: 0 This Week
    Last Update:
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  • 24
    Tsukuba-GAMA provides user and credential management, using the Grid Security Infrastructure (GSI) based on Public Key Infrastructure (PKI), X.509 certificate, proxy certificate, and the concept of Virtual Organization (VO).
    Downloads: 0 This Week
    Last Update:
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