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

  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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  • Turn traffic into pipeline and prospects into customers Icon
    Turn traffic into pipeline and prospects into customers

    For account executives and sales engineers looking for a solution to manage their insights and sales data

    Docket is an AI-powered sales enablement platform designed to unify go-to-market (GTM) data through its proprietary Sales Knowledge Lake™ and activate it with intelligent AI agents. The platform helps marketing teams increase pipeline generation by 15% by engaging website visitors in human-like conversations and qualifying leads. For sales teams, Docket improves seller efficiency by 33% by providing instant product knowledge, retrieving collateral, and creating personalized documents. Built for GTM teams, Docket integrates with over 100 tools across the revenue tech stack and offers enterprise-grade security with SOC 2 Type II, GDPR, and ISO 27001 compliance. Customers report improved win rates, shorter sales cycles, and dramatically reduced response times. Docket’s scalable, accurate, and fast AI agents deliver reliable answers with confidence scores, empowering teams to close deals faster.
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  • 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.
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    Downloads: 894 This Week
    Last Update:
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  • 2
    EmuTOS

    EmuTOS

    Free operating system for Atari computers, and more.

    EmuTOS is a TOS compatible operating system for Atari ST series computers, and more. It is made from Digital Research's GPLed original sources and is a free and open source alternative to Atari proprietary ROMs.
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    Downloads: 571 This Week
    Last Update:
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  • 3
    FreeRTOS Real Time Kernel (RTOS)

    FreeRTOS Real Time Kernel (RTOS)

    Market leading real time kernel for 40+ microcontroller architectures

    ************************************************************************************************************************ * The primary FreeRTOS repository is now in Git. Go to https://github.com/freertos for the latest FreeRTOS kernel and libraries. * Our support has moved to https://forums.freertos.org. ************************************************************************************************************************ FreeRTOS is a market-leading real-time operating system (RTOS) for microcontrollers and small microprocessors. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of libraries suitable for use across all industry sectors. Visit https://www.freertos.org for more information and other download options. Note about support/discussions forum: The FreeRTOS support forum has moved to https://forums.freertos.org. Please update your bookmarks and create new posts in the appropriate category in the new community forums.
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    Downloads: 232 This Week
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  • 4
    fake lezard  ByFL nitrogen MI MAX 3 roms
    ROMS From Fake Lezard on nitrogen Alias (ByFL) ROM for Xiaomi MI MAX 3 Stable and Fast Android 11 to 16 ports for nitrogen. Custom Snake/Neo Kernel optimized for performance. Cleaned system and vendor partitions (ByFL). Includes essential tools (Mi Flash, Drivers, Recovery).
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    Downloads: 409 This Week
    Last Update:
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  • Premier Construction Software Icon
    Premier Construction Software

    Premier is a global leader in financial construction ERP software.

    Rated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
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  • 5
    Galaxy Note 4 Exynos

    Galaxy Note 4 Exynos

    Galaxy Note 4 Exynos5433 AOSP Projects

    Release Repository for https://github.com/universal5433 Support for ALL Samsung Galaxy Note 4 Exynos models Telegram : @Anan1211 Github : ananjaser1211 Paypal : https://paypal.me/ananjaser1211
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    Downloads: 250 This Week
    Last Update:
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  • 6
    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: 93 This Week
    Last Update:
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  • 7
    uCON64 is a tool to backup all kinds of video games. It supports almost every available backup unit for cartridge-based consoles and performs many other tasks like ROM hacking.
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    Downloads: 164 This Week
    Last Update:
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  • 8
    Berry Linux

    Berry Linux

    A lightweight flavor of Linux based on Fedora

    Berry Linux is a bootable CD Linux, automatic hardware detection. Berry Linux can be used as a Linux demo, educational CD, rescue system. It is not necessary to install anything on a hard disk.
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    Downloads: 75 This Week
    Last Update:
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  • 9
    OpenBLT

    OpenBLT

    Bootloader for STM32, XMC, HCS12 and other microcontroller targets.

    OpenBLT is mostly used as an STM32 bootloader, due to the popularity of STM32 microcontrollers. However, the bootloader’s architecture is such that it can work with any microcontroller and use any type of communication interface to perform firmware updates.
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    Downloads: 74 This Week
    Last Update:
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  • Failed Payment Recovery for Subscription Businesses Icon
    Failed Payment Recovery for Subscription Businesses

    For subscription companies searching for a failed payment recovery solution to grow revenue, and retain customers.

    FlexPay’s innovative platform uses multiple technologies to achieve the highest number of retained customers, resulting in reduced involuntary churn, longer life span after recovery, and higher revenue. Leading brands like LegalZoom, Hooked on Phonics, and ClinicSense trust FlexPay to recover failed payments, reduce churn, and increase customer lifetime value.
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  • 10
    zBoy

    zBoy

    a multiplatform, full-featured GameBoy classic emulator

    zBoy is a multiplatform GameBoy emulator that provides a load/save feature, can perform PCX screenshots either manually or automatically (every few seconds) and emulates an internal battery for ROMs that were designed to use one (this allows to use the internal save option provided by such games, remember highest scores, etc). zBoy supports some additionnal features, too, like intelligent saving of hi-scores for some games that aren't able to save their hi-scores table by themselves because of the lack of a battery-backed RAM on the cartridge, and improving screen's resolution output using graphic algorithms like Scale2x, Scale3x, eagle... Here you can see a comparison between graphic algorithms supported by zBoy. This is also one of the very few GameBoy emulators that provides a 2-gameboys link emulation, which makes it possible to play some games in 2-players mode on a LAN. The emulator is available for Linux, DOS and Windows (but should compile for other systems, too).
    Downloads: 71 This Week
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  • 11

    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: 18 This Week
    Last Update:
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  • 12
    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: 11 This Week
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  • 13
    Custom ROM by IndieRock00

    Custom ROM by IndieRock00

    Custom ROM for Redmi 4 Prime (MARKW)

    Downloads: 5 This Week
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  • 14
    WitAqua

    WitAqua

    Android Custom ROM based on LineageOS

    We make WitAqua in Japan. It's an Android Custom ROM based on LineageOS.
    Downloads: 7 This Week
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  • 15
    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.
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    Downloads: 5 This Week
    Last Update:
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  • 16
    Another Kernel
    A kernel for your device
    Downloads: 1 This Week
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  • 17
    FAZIA DAQ

    FAZIA DAQ

    The aim of FAZIA project is to build a 4Pi array for charged particles

    The FAZIA project groups together more than 10 institutions in Nuclear Physics, which are working in the domain of heavy-ion induced reactions around and below the Fermi energy (10-100AMeV). The aim of the project is to build a 4Pi array for charged particles, with high granularity and good energy resolution, with A and Z identification capability over the widest possible range. It will use the up-to-date techniques concerning detection, signal processing and data flow, with full digital electronics. Neutron detection is also foreseen via the collaboration with the NEUTROMANIA group. FAZIA is designed to operate at stable and radioactive beams facilities like LNL-Legnaro, LNS-Catania in Italy, GANIL-SPIRAL and SPIRAL2 in France, GSI-FAIR in Germany in the horizon 2010-2015. The availability of the european radioactive beam facility EURISOL expected in the period 2015-2020 will also be a major opportunity for the FAZIA community.
    Downloads: 0 This Week
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  • 18
    GSI Student ToolBox
    GSI student toolbox is a software package made for teaching purposes. It allows you to perform seismic inversion using global sthocastic inversion method made within CERENA/CMRP. NOTE: you can perform the same operations done with GSI Student Toolbox with our newest software GEOMS2. You can download the beta release here: https://sourceforge.net/projects/geoms2/
    Downloads: 0 This Week
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  • 19
    General Sound Interface (GSI). This is a sound interface capable of controlling every detail of sound playing. It can use the following interfaces: OSS, Ultrasound (Linux 2.0.x & 2.1.x), FreeBSD (pcm), and generic /dev/audio.
    Downloads: 0 This Week
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  • 20
    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
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  • 21
    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
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  • 22
    Victara_Universe
    Project to support Motorola Moto X 2014 And Other supported devices by Victara_Universe Team!
    Downloads: 0 This Week
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  • 23
    The Grid-Cache is a GSI HTTPS data transfer server. The server can share, for read and write, local resources and remote repositories using a cache based optimization.
    Downloads: 0 This Week
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  • 24
    pam-pkinit enables to get kerberos 5 credential using PKINIT in PAM session module. pam_pkinit was initialy built to provide seamless access to kerberized sites using GSI-SSH and PKINIT (Heimdal). It could be used in similar situations too.
    Downloads: 0 This Week
    Last Update:
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