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

  • RMM Software | Remote Monitoring Platform and Tools Icon
    RMM Software | Remote Monitoring Platform and Tools

    Best-in-class automation, scalability, and single-pane IT management.

    Don’t settle when it comes to managing your clients’ IT infrastructure. Exceed their expectations with ConnectWise RMM, our MSP RMM software that provides proactive tools and NOC services—regardless of device environment. With the number of new vulnerabilities rising each year, smart patching procedures have never been more important. We automatically test and deploy patches when they are viable and restrict patches that are harmful. Get better protection for clients while you spend less time managing endpoints and more time growing your business. It’s tough to locate, afford, and retain quality talent. In fact, 81% of IT leaders say it’s hard to find the recruits they need. Add ConnectWise RMM, NOC services and get the expertise and problem resolution you need to become the advisor your clients demand—without adding headcount.
  • Integrate in minutes with our email API and trust your emails reach the inbox | SendGrid Icon
    Integrate in minutes with our email API and trust your emails reach the inbox | SendGrid

    Leverage the email service that customer-first brands trust for reliable inbox delivery at scale.

    Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption.
  • 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)
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    Downloads: 39,072 This Week
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  • 2
    crDroid Android

    crDroid Android

    Highly customizable Android Platform

    crDroid is a free Android based ROM, bringing a lot of features that are most advanced in terms of customization and stability!
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    Downloads: 32,009 This Week
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  • 3
    BlissOS-x86

    BlissOS-x86

    An Open Source OS, based on Android for PC's & Tablets

    This is Bliss (see http://blissroms.com), running as a native or emulated* OS for PCs.. These builds are compatible with PCs, MacBooks and Chromebooks equipped with x86/x86_64 compatible CPUs. Supports both BIOS/CSM and UEFI boot. *Emulated support is only for KVM/QEMU instances. VMWare & VirtualBox is not officially supported Most of the instructions, guides, update posts & support is handled through our community threads on XDA. The Bliss OS thread is here: https://forum.xda-developers.com/bliss-roms/bliss-roms-development/bliss-os-pie-beta-preview-t3855917 Other support options include our Telegram chats. Bliss OS (x86) Support chat: https://t.me/blissx86 Bliss ROM's public chat: https://t.me/Team_Bliss_Community Bliss ROM/OS Build Support chat: https://t.me/Team_Bliss_Build_Support
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    Downloads: 29,987 This Week
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  • 4
    DerpFest

    DerpFest

    DerpFest Custom ROM Downloads For Official Supported Devices

    We started as a small project based on AOSiP for the Oneplus 5T back on Android 9.0. Then various users and maintainers got interested in supporting this project. Now we make efforts to cut the cord and stand on our own feet. We try to be a platform for beginners and support the Custom ROM community with our own unique contributions as well. This ROM exists thanks to our base - AOSiP, Thank you!
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    Downloads: 7,978 This Week
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  • Acronis Backup Protection Icon
    Acronis Backup Protection

    Acronis provides award-winning backup software and data protection solutions for consumers, businesses and MSPs.

    Security, Backup and Disaster Recovery can be a nightmare to manage, we bring it all together for you in a single platform.
  • 5
    Downloads: 6,308 This Week
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  • 6
    Evolution X

    Evolution X

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

    Evolution X is a flashable Custom ROM to bring a true Pixel feel to your Android Device at first glance, with many additional configurations at your disposal. We aim to provide frequent builds with monthly security patches from the latest aosp sources!
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    Downloads: 31,609 This Week
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  • 7
    Project Elixir [Custom ROM]
    Project Elixir basically offers a minimal UI enhancement & close to Stock Android ROM with great performance, security and stability. Your experience while using Project Elixir will be butter smooth without compromising the quality of the Android experience. So do not hesitate anymore, join us now and start enjoying the beauty of stock Android. Download and enjoy Project Elixir on your respective devices!
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    Downloads: 8,917 This Week
    Last Update:
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  • 8
    EliteRoms

    EliteRoms

    Elite Development Project by hassanmirza01

    you can follow progress, new stuff at https://www.EliteDevelopment.com.pk Support on: https://Paypal.me/sheriii999
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    Downloads: 7,303 This Week
    Last Update:
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  • 9
    SystemRescue

    SystemRescue

    A Linux system rescue toolkit as a bootable removable device

    SystemRescue is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the hard disk partitions. It comes with a lot of software such as disk management tools (parted, partimage, fsarchiver, filesystem tools, ...), network administration programs and simple text editors . It can be used for both Linux and windows computers, and on desktops as well as servers. This rescue system requires no installation as it can be booted from a CD/DVD drive, and USB stick, or from the network using PXE. But it can be installed on the hard disk if you wish. It comes with up to date kernels to provide support for recent hardware and also for all important file systems (ext2/ext3/ext4, xfs, btrfs, ntfs, reiserfs, vfat), as well as network filesystems (samba and nfs).
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    Downloads: 4,452 This Week
    Last Update:
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  • Innovate faster with enterprise-ready generative AI—enhanced by Gemini Icon
    Innovate faster with enterprise-ready generative AI—enhanced by Gemini

    Build, deploy, and scale machine learning (ML) models faster, with fully managed ML tools for any use case.

    Vertex AI offers everything you need to build and use generative AI—from AI solutions, to Search and Conversation, to 130+ foundation models, to a unified AI platform.
  • 10
    Eureka Releases

    Eureka Releases

    This organisation builds roms and recoveries for various A devices

    This organisation builds roms and recoveries for various A devices
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    Downloads: 3,788 This Week
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  • 11
    Nippon GSI Updates
    GSI Porting Project using Erfan's GSIs tool
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    Downloads: 3,811 This Week
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  • 12
    blissos-dev

    blissos-dev

    Android for your PC, but more Blissful

    Bliss OS (x86) Android for your PC An Open Source OS, based on Android, that incorporates many optimizations, features, and expanded device support. And it is available for just about any Chromebook, Windows/Linux PC or tablet released in the last 4 years Our support options use Telegram chats. Bliss OS (x86) Support chat: https://t.me/blissx86 Bliss ROM/OS Build Support chat: https://t.me/Team_Bliss_Build_Support Android-Generic Project development chat: https://t.me/androidgenericpc
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    Downloads: 2,993 This Week
    Last Update:
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  • 13
    Superior OS
    SuperiorOS is a AOSP based ROM works on android Operating System . We trying to fullfil the demands of users regarding features , Stability & perfermance
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    Downloads: 1,716 This Week
    Last Update:
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  • 14
    BlissRoms

    BlissRoms

    An Open Source OS, based on Android for legacy devices & GSI/Treble

    An Open Source OS, based on Android, that incorporates many customization options and added security features. One of our main focuses is to provide a quality ROM/OS that can run on all your devices, preserving customizations and options by syncing across all platforms. We try to include all the features you can imagine, for just about any situation. Bliss comes in a few variants. On top of our traditional device builds of Bliss ROM, our GSI/Treble builds will work on most treble compatible devices (Android Pie+)
    Leader badge
    Downloads: 1,474 This Week
    Last Update:
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  • 15
    PixelOS

    PixelOS

    PixelOS is an AOSP based ROM, with all the Pixel goodies.

    PixelOS is an AOSP based ROM, with Google apps included and all Pixel goodies. We aim to provide an experience similar to Google Pixel phones with numerous performance enhancements and a small amount of useful additional features.
    Leader badge
    Downloads: 7,500 This Week
    Last Update:
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  • 16
    Downloads: 1,274 This Week
    Last Update:
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  • 17
    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.
    Leader badge
    Downloads: 699 This Week
    Last Update:
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  • 18
    ImDisk Toolkit

    ImDisk Toolkit

    Ramdisk for Windows and mounting of image files

    This tool will let you mount image files of hard drive, cd-rom or floppy, and create one or several ramdisks with various parameters. This all-in-one package includes the ImDisk Virtual Disk Driver (2.1.1), the DiscUtils library that extends the number of supported image file formats, and adds several GUIs and features. 64-bit: https://sourceforge.net/projects/imdisk-toolkit/files/20240210/ImDiskTk-x64.zip 32-bit: https://sourceforge.net/projects/imdisk-toolkit/files/20240210/ImDiskTk.zip Requirements: Windows 7, 8, 8.1, 10 or 11 (32 or 64-bit). Some image file formats also require .NET Framework 4.8 (included in Windows 10 1903 and later) to be mounted with the DiscUtils library. .NET Framework 4.8: https://dotnet.microsoft.com/en-us/download/dotnet-framework/net48 XP/Vista: https://sourceforge.net/projects/imdisk-toolkit/files/20240113/ License: http://www.wtfpl.net/
    Leader badge
    Downloads: 3,657 This Week
    Last Update:
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  • 19
    Memories  of Me
    Hello everyone, we have been together for a while, there are many compliments and encouragements for me, but at the same time there are many people criticizing, bashing and even reporting my account. I was so tired and depressed. So I would like to announce that 01.24.29 is the last rom version I release. From now on I will stop updating and my project will also stop. Thank you my fans. I love you guys.
    Leader badge
    Downloads: 646 This Week
    Last Update:
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  • 20
    ProjectBlaze
    Project Blaze is a custom ROM based on AOSP that comes with GAPPS and VANILLA variant. We currently support 10+ OFFICIAL Devices
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    Downloads: 870 This Week
    Last Update:
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  • 21
    All about RealMe C2 (RMX1941/1945)- Stock Firmware, ROM, Guides, MODs, NEWS, everything. SourceForge : https://sourceforge.net/projects/realme-c2/files/ Group : https://t.me/RealmeC2Community Channel : https://t.me/realmec2update
    Leader badge
    Downloads: 646 This Week
    Last Update:
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  • 22
    Pixel Extended-ROM

    Pixel Extended-ROM

    OFFICIAL DOWNLOAD HOST OF PEX

    A Fork Of Pixel Experience with some kanged feature
    Leader badge
    Downloads: 835 This Week
    Last Update:
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  • 23
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    Downloads: 577 This Week
    Last Update:
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  • 24
    SyberiaOS
    Syberia Project (aka Syberia OS) is a custom ROM for many devices that implements various features. This project was designed by our "Syberia Team" from scratch based on AOSP source code with some CAF fixes and improvements. Our team: @blinoff82, @DennySPB, @alexxxdev. Also many thanks to our designer @rlshukhov for logos, wallpapers and bootanimation. If you like our work you can you can buy us a cup of coffee or a glass of beer here: https://syberiaos.com/links
    Leader badge
    Downloads: 441 This Week
    Last Update:
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  • 25
    Project Sakura

    Project Sakura

    Feels Like Spring.

    A custom ROM built around Lineage OS 18.1, with more extended functionality in mind.
    Leader badge
    Downloads: 370 This Week
    Last Update:
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Guide to Open Source ROMs

Open source ROMs are custom versions of Android that have been created by developers and enthusiasts. They provide users with an alternate operating system to the official Android OS from Google. Open source ROMs are based on the AOSP (Android Open Source Project). An open source ROM is essentially a version of Android that is modifiable, which means it can be changed or extended to suit the user’s needs in terms of function and design. The key benefit of using open source ROMs is that they offer more customization possibilities than the original version of Android. This means users can modify their device's look and feel, as well as add additional features and apps that allow them to customize their device further.

The vast majority of open source ROMs are free and available for most popular Android devices via XDA Developers Forum or other online resources. Many popular third-party launchers, themes, wallpapers, sounds and more can also be found on these forums too. In addition to being offered at no cost, another great advantage of downloading an open-source ROM is that you get access to all its features without having to worry about any kind of spyware or bloatware added by some OEM manufacturers at times during updates.

However there are some downsides too; one should consider before installing an open source custom Rom on your phone such as compatibility issues, ongoing security updates not provided for old devices etc All in all if you don't mind handling some extra work with tinkering around through settings menus then installing a custom Rom gives you power over your device like never before.

What Features Do Open Source ROMs Provide?

  • Customizable UI: Open source ROMs provide users with the ability to customize the look and feel of their device. This includes changing home screen layouts, icon packs, wallpapers, and more.
  • Accessibility Options: Some open source ROMs offer additional accessibility options for people with disabilities or impairments. These can include changes to display size, font size and type, color adjustments, and much more.
  • Root Access: With open source ROMs, users are able to gain root access to their device. This allows them to make modifications beyond what is allowed in stock Android versions – such as installing custom kernels or flashing custom recoveries.
  • Security: Open source ROMs may come packed with extra security features which are not available on stock Android devices. These could range from things like app permissions controls to malware detection or even encryption options for data stored on the device.
  • Enhanced Performance: Most open source ROMs utilize optimized versions of an operating system that have been designed to improve performance - including battery life and speed. Additionally, many also contain CPU-specific optimizations which further improve performance by taking advantage of individual processor capabilities.
  • Frequent Updates: Another key feature of some open source ROMs is that they receive frequent updates from developers who actively contribute to projects over time — meaning users often benefit from improved software stability and security patches quicker than those running a standard version of Android would get them via an official update channel.

What Are the Different Types of Open Source ROMs?

  • AOSP (Android Open Source Project): This type of open source ROM is the basis of all Android operating systems. It's a vanilla version with no customization or added features, just the base OS and platform tools.
  • Custom ROM: This is an open source ROM that has been modified by developers with added features and customizations. These are usually community-driven projects and can offer a more personalized experience as well as optimized performance over stock versions of the OS.
  • Baked ROMs: This type of open source ROM is a combination of multiple existing open source platforms, software libraries, tools, and frameworks in order to create something new. These are often used for creating apps or services that wouldn't be possible on a single platform alone.
  • LineageOS: LineageOS is one of the most popular open source ROMs available today. It's based on Android AOSP code but includes additional features not found in AOSP such as improved security, better battery life and improved gaming performance among others. LineageOS also supports a wide range of devices from different manufacturers making it appealing to those looking for customized experiences tailored to their device model and brand.
  • CyanogenMod: CyanogenMod was once one of the most well-known custom Android ROMs out there although it has since been discontinued in favor of LineageOS which serves as its successor. CyanogenMod offers many customization options including theming capabilities allowing users to customize their device’s look much easier than before while still providing access to all Google Apps such as Gmail and Google Maps already included in the firmware unlike other custom roms that require manual installation afterwards

What Are the Benefits Provided by Open Source ROMs?

  1. Cost Savings: Open source ROMs are typically available for free, or at a very low cost. This eliminates the need to purchase expensive software licenses which can be cost prohibitive for many users. Additionally, since most open source projects are open to the public for improvement or feature updates, you don’t have to pay for those updates as they become available.
  2. Security: Open source ROMs provide an additional layer of security improves over traditional proprietary software packages. Since these projects are open-source and shared with the community, anyone with access can submit improvements or bug fixes that will benefit everyone else as well as tighten overall system security.
  3. Customization: One of the main benefits of an open source ROM is its high level of customization options. These include everything from customizing your device to completely redesigning applications and operating systems according to your own needs and preferences. This allows users who know how to code in HTML, CSS, JavaScript and other related programming languages to craft their own experiences without being limited by what is provided by a proprietary package.
  4. Reliability: By its nature, an open source project will have multiple developers contributing different pieces of code that work together as part of a larger whole; this helps create a reliable product because any bugs or issues get resolved quickly by one or more members of the community working on it. Additionally, since there is no external company responsible for maintaining these projects (such as Google), there is less pressure on them than on closed-source projects that must continually release updates in order meet customer demands and make money from sales of their software packages.
  5. Quality Control: Because open sources allow anyone with access to contribute code towards improving the product quality, it ensures that all changes made are done so with care; this eliminates potential conflicts between individual programmers who may be trying to push through rushed changes without giving enough thought into its potential implications down the road causing instability within the product itself

What Types of Users Use Open Source ROMs?

  • Power Users: Power users are those who need the customization of an open source ROM and use it to keep their devices up-to-date with the latest firmware as soon as possible. They have a good understanding of how open source works and are willing to take on the risk of running unstable or experimental code.
  • Tech Enthusiasts: Tech enthusiasts look for new ways to customize their device and tinker with settings in order to make their device unique. They will often install new open source ROMs just to check out the features, even if they do not plan on using them regularly.
  • Bug Finders: Bug finders use open source ROMs as a way of helping developers debug their software. By installing and testing different versions of ROMs, bug finders can point out areas that need improvement and provide valuable feedback.
  • Gamers/Performance Enhancers: Gamers may choose an open source ROM in order to get improved performance from games or simply access tweaks that can improve battery life or multitasking capabilities. Open source ROMs also allow gamers access to advanced hardware controls not available otherwise which can increase gaming performance.
  • Custom UI Seekers: Custom UI seekers look for ways to personalize the look of their device by installing custom UIs built off of an open source base, such as CyanogenMod’s Theme Engine or HTC Sense 4+. These customizations are often designed specifically for certain types of devices (e.g., tablets) making them difficult to obtain elsewhere so these seekers turn to the freedom offered by an open source platform like CyanogenMod in order gain access these themes.

How Much Do Open Source ROMs Cost?

Open source ROMs are available free of charge, making them an attractive option for developers and users alike. Open source ROMs are based on the Android Open Source Project (AOSP), which is a project that was started by Google in 2008 to provide the software framework for mobile devices running the Android operating system. The code is freely available, so anyone can modify it to their own needs without having to pay any licensing fees. This means open source ROMs can be downloaded and used without any cost associated with it.

In addition to being free of charge, open source ROMs also offer several advantages over more traditional propriety-based systems. As they come from AOSP, they have been tested and certified by Google, ensuring a certain degree of security, reliability and compatibility not always found in other custom ROMs. Moreover, as they are open source, users can modify or customize their devices however they see fit — something that would usually require expensive modifications or even hardware replacement with proprietary systems. They also often include new features not found elsewhere and provide better performance than many closed-source ROMs due to optimized kernel tweaks or additional layers of customization options beyond what's enabled by default in AOSP builds. Finally, because there is no license fee associated with these builds they do not come with limitations like some commercial solutions do where upgrades must be paid for every now and then.

Overall then open source ROMs are a great choice for those looking for cost effective solutions without having to compromise on quality or features – all you have to pay is your time and expertise.

What Software Can Integrate With Open Source ROMs?

Open source ROMs (Read-Only Memories) are programs that allow users to modify, distribute, and use the software without the need for a license or fee. Open source ROMs can be integrated with many types of software such as operating systems, web browsers, middleware libraries, applications, databases, virtual machines and development frameworks. Additionally, these ROMs can be used to implement embedded systems like mobile phones or portable music equipment. Integration with open source ROMs allows developers to create custom versions of their applications while ensuring they stay up-to-date with the latest versions of the open source software they are integrating with. Furthermore, integration enables developers to reduce potential dependency hazards from building any given application and provides them with a more secure platform for running their application in production environments.

Recent Trends Related to Open Source ROMs

  1. Increased Usage: Over the past few years, open source ROMs have seen a significant increase in usage among tech enthusiasts, developers, and casual users alike. This is due to their ease of customization and their wide range of features that can be tailored to each individual's needs.
  2. Compatibility: Open source ROMs are based on the Android operating system, meaning they are compatible with a wide range of devices. This allows users to customize their device to run the software they want and need without having to purchase a new device.
  3. Easier Updates: Unlike other mobile operating systems, open source ROMs are typically much easier to update. Many of these ROMs are updated regularly with bug fixes and security patches, allowing users to keep their devices secure and up-to-date with the latest features.
  4. Community Support: One of the most significant benefits of open source ROMs is the support they receive from active members of the community. There are numerous forums and websites dedicated to helping users customize, troubleshoot, and improve their devices.
  5. Cost Savings: Open source ROMs can be downloaded for free or at a fraction of the cost compared to traditional software. This allows users to save money while still enjoying all the benefits of a mobile operating system.

How To Get Started With Open Source ROMs

Getting started with open source ROMs is easier than ever. First, you’ll need to make sure that your device is rooted and compatible with the type of custom ROM you want to install. Checking forums, Reddit, and XDA Developers are great resources for researching which custom ROMs are supported by your device.

Once your device is properly rooted and you have identified the right custom ROM for it, the next step is to prepare your phone for installation. This involves backing up all of your important data, as well as wiping any existing operating system and partitions through a “factory reset” or using external tools such as TWRP (TeamWin Recovery Project).

Now it’s time to get the actualROM file itself. There are several reputable websites where open source software can be downloaded from; however, most users find success in looking on Reddit pages dedicated specifically to their particular phone model and its corresponding software files. Once downloaded, you can then transfer this file over USB cable or other appropriate method to your mobile device so that it can be accessed via recovery mode.

Finally, pressing any combination of buttons required on startup will take you into recovery mode (e.g., power off + volume button), whereupon you should flash the new ROM image onto your device using either CWM or TWRP method respectively provided they have been installed onto the device previously in accordance with factory resetting process outlined above in Step 2 above. Upon completion of said process simply reboot your phone and newly flashed OS should launch without problem.