System Apps for Android

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

  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 1
    AutoClicker

    AutoClicker

    A full-fledged autoclicker with two modes of autoclicking

    A full-fledged autoclicker with two modes of autoclicking, at your dynamic cursor location or at a prespecified location. The maximum amounts of clicked can also be set (or left as infinite). Hotkeys work in the background for convenience. If you need to automate multiple mouse clicks, try this multiple auto clicker: https://sourceforge.net/projects/orphamielautoclicker/files/AutoClickers.exe/download Whats new in v1.0.0.2: 1. You can now change your hotkeys! 2. Changed the about page 3. Added a few minor options v1.0.0.1 : 1. Your settings are now saved from your last session so you only need to enter them once. (Includes last fixed location) 2. Added double clicking and triple clicking 3. Added Right clicking and middle clicking
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    Downloads: 741,867 This Week
    Last Update:
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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: 57,042 This Week
    Last Update:
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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: 20,264 This Week
    Last Update:
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  • 4
    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: 12,046 This Week
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  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
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  • 5
    Winlator

    Winlator

    Android application for running Windows applications with Wine

    A software that enables users to run Windows applications on Android devices, providing an emulation layer that supports various Windows applications and games.
    Downloads: 2,162 This Week
    Last Update:
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  • 6
    Iperf 2

    Iperf 2

    A means to measure network responsiveness and throughput

    Throughput testing, latency testing, jitter measurement, packet loss measurement, TCP testing, UDP testing, ECN testing, L4S testing, responsiveness testing, bounceback testing, one-way delay measurement, histogram reporting, multicast testing, IPv6 support, parallel streams, bidirectional testing, full-duplex testing, congestion-control testing, socket pacing, CSV output, embedded systems support Current release: 2.2.2, July 7, 2026 About iperf 2 and iperf3: Read about the differences between these programs at https://iperf2.sourceforge.io/IperfCompare.html Man page: https://iperf2.sourceforge.io/iperf-manpage.html Manual: https://iperf2.sourceforge.io/iperf2-user-manual.html
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    Downloads: 10,429 This Week
    Last Update:
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  • 7

    eOSBuildsRonnz98

    Custom ROMs for /e/OS

    Custom ROMs for /e/OS Some custom ROMS for iode, LineageOS and crDroid For more information and install instructions please look at: https://community.e.foundation
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    Downloads: 5,002 This Week
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  • 8
    RetroBIOS

    RetroBIOS

    Complete BIOS & firmware packs for RetroArch, Batocera, Recalbox, etc.

    RetroBIOS is an open-source project that provides complete BIOS and firmware packs for a wide range of emulators and retro gaming platforms. It includes thousands of verified system files required to run consoles and arcade systems accurately across tools like RetroArch, Batocera, RetroPie, and EmuDeck. Each BIOS file is validated against emulator source code to ensure correctness, compatibility, and proper functionality. The project simplifies setup by offering automated install scripts that detect your platform and download only the required missing files. It also includes detailed documentation, cross-platform mappings, and verification tools to help users manage and audit their BIOS collections. Overall, RetroBIOS serves as a reliable, structured solution for retro gaming enthusiasts who want accurate and hassle-free emulator setups.
    Downloads: 960 This Week
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  • 9
    PrimeOS
    PrimeOS, the ideal Android based OS for mobile games on PC/Laptop.
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    Downloads: 10,159 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 10
    libusb

    libusb

    A cross-platform library that gives apps easy access to USB devices

    Library to enable user space application programs to communicate with USB devices
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    Downloads: 3,998 This Week
    Last Update:
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  • 11
    whisper.cpp

    whisper.cpp

    Port of OpenAI's Whisper model in C/C++

    whisper.cpp is a lightweight, C/C++ reimplementation of OpenAI’s Whisper automatic speech recognition (ASR) model—designed for efficient, standalone transcription without external dependencies. The entire high-level implementation of the model is contained in whisper.h and whisper.cpp. The rest of the code is part of the ggml machine learning library. The command downloads the base.en model converted to custom ggml format and runs the inference on all .wav samples in the folder samples. whisper.cpp supports integer quantization of the Whisper ggml models. Quantized models require less memory and disk space and depending on the hardware can be processed more efficiently.
    Downloads: 743 This Week
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  • 12
    VICE

    VICE

    Versatile Commodore Emulator

    VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.
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    Downloads: 3,154 This Week
    Last Update:
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  • 13
    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: 2,943 This Week
    Last Update:
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  • 14
    Pandora Open

    Pandora Open

    Open Source Monitoring System for performance and availability.

    Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators.
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    Downloads: 2,815 This Week
    Last Update:
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  • 15
    BluestarLinux
    Bluestar Linux is an Arch Linux-based distribution, built with an understanding that people want and need a solid Operating System that provides a breadth of functionality and ease of use without sacrificing aesthetics. Bluestar is offered in three edtions - desktop, deskpro and developer - each tailored to address the needs of a variety of Linux users. Bluestar can be installed permanently as a robust and fully configurable operating system on a laptop or desktop system, or it can be run effectively as a live installer and supports the addition of persistent storage for those who choose not to perform a permanent installation. A Bluestar Linux software respository is also maintained in order to provide additional tools and applications when needed or requested. Bluestar provides the following features: Up-to-date Kernel Wide Variety of Applications - Always Current Versions Full Development / Desktop / Multimedia Environment
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    Downloads: 16,579 This Week
    Last Update:
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  • 16
    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: 2,353 This Week
    Last Update:
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  • 17
    NetherSX2

    NetherSX2

    Continuation of NetherSX2 based on AetherSX2 4248

    NetherSX2-patch is a community-driven continuation and enhancement of the NetherSX2 Android PlayStation 2 emulator, itself a modded fork of the open-source AetherSX2 project originally based on PCSX2. It focuses on providing a more complete and feature-rich experience by applying patches to the upstream emulator build and removing ad-related bloat, fixing notification issues, and exposing many internal settings so users have finer control over performance and compatibility on mobile devices. The project maintains an up-to-date GameDB (game compatibility database), improves controller support, and includes widescreen and no-interlace patches that make many games look and run better on modern screens. Developers also include additional fixes specific to AetherSX2 and NetherSX2 builds, along with tools to resign APKs to avoid Play Protect warnings, which makes installation smoother on Android hardware.
    Downloads: 331 This Week
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  • 18
    Downloads: 3,101 This Week
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  • 19
    Vectras VM

    Vectras VM

    It's a Virtual Machine App for Android Which is Based on QEMU

    Vectras VM Android is a mobile virtualization platform built on top of QEMU that enables users to run full desktop operating systems directly on Android devices. It functions as a complete virtual machine manager, allowing the emulation of systems such as Windows, Linux, macOS, and even other Android environments within a single app. The project is designed to push the limits of mobile hardware by leveraging modern smartphone CPUs and RAM configurations to simulate full computing environments. It includes a graphical interface and setup tools that simplify the process of creating and managing virtual machines, making it accessible beyond purely technical users. The emulator supports different architectures and integrates additional components like 3dfx wrappers to improve graphical compatibility and performance. Due to the heavy computational requirements, it is optimized for newer devices with high-end processors and sufficient memory.
    Downloads: 293 This Week
    Last Update:
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  • 20
    Magisk

    Magisk

    Suite of open source tools for customizing Android

    Magisk is a suite of tools intended for Android customization, and supports devices higher than Android 4.2. Some elements of Android customization are root, boot scripts, SELinux patches, AVB2.0 / dm-verity / forceencrypt removals, etc. Some of the most important features of Magisk are that it provides root access to your device and it modifies read-only partitions when installing modules. Also, you can hide Magisk from root detections / system integrity checks. Magisk comes with a huge collections of tools for installation, daemons, and utilities for developers. Magisk contains MagiskSU, Magisk Modules and MagiskHide features.
    Downloads: 285 This Week
    Last Update:
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  • 21
    VoltageOS
    Greetings, interested users! You have reached the gateway of a simplistic, no frills pure AOSP experience that will not let you down in getting through every day uninterrupted by inconveniences, with just the right dab of customisations. Be it requiring safetynet for banking or payment apps to receiving the latest security patches from Google as soon as they're released, we've got you covered. It doesn't end there. Sit back, relax and let the system theme your device according to your preferences with Monet support. Step in and begin your journey with Voltage OS.
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    Downloads: 1,873 This Week
    Last Update:
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  • 22
    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+)
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    Downloads: 1,433 This Week
    Last Update:
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  • 23
    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: 1,742 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
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    Downloads: 1,430 This Week
    Last Update:
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  • 25
    MyPhoneExplorer

    MyPhoneExplorer

    Simply explore your Android phone!

    Connect your phone via WiFi, cable or bluetooth and you'll be surprised how easy and efficient it will be to manage your Android based smartphone with our software. Since it's first release MyPhoneExplorer evolved into the most popular freeware tool for smartphones. The software is constantly updated with new features. In opposite to many other solutions MyPhoneExplorer does work complete locally without using any third-party server!
    Downloads: 1,053 This Week
    Last Update:
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