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.

  • 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.
    Sign up for free
  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
    Learn More
  • 1
    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.
    Leader badge
    Downloads: 758 This Week
    Last Update:
    See Project
  • 2
    The Fresh Project

    The Fresh Project

    Simply Awesome.

    The official home of Fresh, a One UI-based custom firmware for Samsung devices.
    Leader badge
    Downloads: 205 This Week
    Last Update:
    See Project
  • 3

    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: 62 This Week
    Last Update:
    See Project
  • 4
    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: 16 This Week
    Last Update:
    See Project
  • 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.
    Start Free
  • 5
    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: 30 This Week
    Last Update:
    See Project
  • 6
    WitAqua

    WitAqua

    Android Custom ROM based on LineageOS

    We make WitAqua in Japan. It's an Android Custom ROM based on LineageOS.
    Leader badge
    Downloads: 14 This Week
    Last Update:
    See Project
  • 7
    OPEN GENERAL SCIENTIFIC INTERFACES
    OPEN GENERAL SCIENTIFIC INTERFACES homepage : http://www.opengsi.org
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    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: 0 This Week
    Last Update:
    See Project
  • 9

    MazWoz EVO ROM

    Android ROM for EVO

    Android ROM for HTC EVO 4G ICS
    Downloads: 0 This Week
    Last Update:
    See Project
  • Enterprise and Small Business CRM Solution | Clear C2 C2CRM Icon
    Enterprise and Small Business CRM Solution | Clear C2 C2CRM

    Voted Best CRM System with Top Ranked Customer Support. CRM Management includes Sales, Marketing, Relationship Management, and Help Desk.

    C2CRM consists of four modules that integrate to provide a comprehensive CRM solution: Relationship Management, Sales Automation, Marketing Automation, and Customer Service. Only buy what each user needs.
    Learn More
  • 10
    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:
    See Project
  • Previous
  • You're on page 1
  • Next