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.

  • Your top-rated shield against malware and online scams | Avast Free Antivirus Icon
    Your top-rated shield against malware and online scams | Avast Free Antivirus

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  • 1
    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
    Leader badge
    Downloads: 5,082 This Week
    Last Update:
    See Project
  • 2
    Bazel

    Bazel

    Fast, scalable, multi-language and extensible build system

    Build and test software of any size, quickly and reliably. Bazel only rebuilds what is necessary. With advanced local and distributed caching, optimized dependency analysis and parallel execution, you get fast and incremental builds. Build and test Java, C++, Android, iOS, Go and a wide variety of other language platforms. Bazel runs on Windows, macOS, and Linux. Bazel helps you scale your organization, codebase and Continuous Integration system. It handles codebases of any size, in multiple repositories or a huge monorepo. Easily add support for new languages and platforms with Bazel's familiar extension language. Share and re-use language rules written by the growing Bazel community. Bazel is the common build tool throughout Pinterest and has been instrumental in achieving fast, reproducible builds across our programming languages and platforms.
    Downloads: 147 This Week
    Last Update:
    See Project
  • 3
    FreeRDP

    FreeRDP

    FreeRDP is a free remote desktop protocol library and clients

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Enjoy the freedom of using your software wherever you want, the way you want it, in a world where interoperability can finally liberate your computing experience. The nightly builds are installed into /opt/freerdp-nightly and can be installed in parallel with the distributions regular freerdp package. Network tracing of RDP can be quite a challenge due to a number of factors such as encryption, compression, and the fact that these protocol features cannot always be disabled or worked around. One of the easiest way of decrypting RDP traffic is to configure the server with a self-signed certificate for which the private key is known, and then use this certificate with a network tracing tool to automatically decrypt the packets.
    Downloads: 85 This Week
    Last Update:
    See Project
  • 4
    plow

    plow

    A high-performance HTTP benchmarking tool

    Plow is an HTTP(S) benchmarking tool, written in Golang. It uses excellent fast HTTP instead of Go's default net/http due to its lightning-fast performance. Plow runs at specified connections (option -c) concurrently and real-time records summary statistics, histogram of execution time and calculates percentiles to display on Web UI and terminal. It can run for a set duration( option -d), for a fixed number of requests(option -n), or until Ctrl-C is interrupted. The implementation of real-time computing Histograms and Quantiles using stream-based algorithms inspired by Prometheus with low memory and CPU bounds. so it's almost no additional performance overhead for benchmarking.
    Downloads: 18 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 5
    FlorisBoard

    FlorisBoard

    An open-source keyboard for Android which respects your privacy

    FlorisBoard is a free and open-source keyboard for Android 7.0+ devices. It aims to be modern, user-friendly, and customizable while fully respecting your privacy. Currently in early beta state.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 6
    MMKV for Android

    MMKV for Android

    An efficient, small mobile key-value storage framework

    MMKV for Android is an efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX. Efficient. MMKV uses mmap to keep memory synced with file, and protobuf to encode/decode values, making the most of Android to achieve best performance. MMKV supports concurrent read-read and read-write access between processes. Easy-to-use. You can use MMKV as you go. All changes are saved immediately, no sync, no apply calls needed. MMKV contains process locks, encode/decode helpers and mmap logics and nothing more. It's really tidy. MMKV adds about 50K per architecture on App size, and much less when zipped (apk). MMKV is published under the BSD 3-Clause license. Starting from v1.2.8, MMKV has been migrated to Maven Central. Older versions (<= v1.2.7) are still available on JCenter.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 7
    spdlog

    spdlog

    Fast C++ logging library

    spdlog is a header only library. Just copy the files under include to your build tree and use a C++11 compiler. It provides a python like formatting API using the bundled fmt lib. spdlog takes the "include what you need" approach, your code should include the features that actually needed. For example, if you only need rotating logger, you need to include "spdlog/sinks/rotating_file_sink.h". spdlog provides various log targets, which are, rotating log files, daily log files, console logging (colors supported), syslog, Windows event log, and Windows debugger (OutputDebugString(..)). Easily extendable with custom log targets. Log filtering, log levels can be modified in runtime as well as in compile time. Support for loading log levels from argv or from environment var. Backtrace support, store debug messages in a ring buffer and display later on demand.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 8
    status-react

    status-react

    A free (libre) open source, mobile OS for Ethereum

    Status is a secure messaging app, crypto wallet, and Web3 browser built with state-of-the-art technology. Join us in creating a browser, messenger, and gateway to a decentralized world. Status is a free (libre) open-source mobile client targeting Android & iOS built entirely on Ethereum technologies. That's right, no middle men and go-Ethereum running directly on your device. We believe in a medium of pure free trade, economies with fair, permission-less access and a world without intermediaries. We want to create policies that can exist between friends or scale globally, we want to communicate securely and be uninhibited by legacy systems. Safely send, store and receive cryptocurrencies including ERC20 and ERC721 tokens with the Status crypto wallet. Only you hold the keys to your funds. Status' intuitive design protects you and your funds from attacks. Status uses an open-source, peer-to-peer protocol, and end-to-end encryption to protect your messages from third parties.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 9
    Cosmic-OS

    Cosmic-OS

    #ExploreTheCosmos

    Cosmic-OS is a pure CAF based custom ROM with customisations support. The aim of this ROM is to deliver light-speed performance with plenty of features, a high level of fluidity, and good battery life. We hope that you will love our work, and help us in making it even better in the future.
    Downloads: 29 This Week
    Last Update:
    See Project
  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
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  • 10
    PixelBuilds

    PixelBuilds

    Latest Android builds from PixelBoot.

    Builds and images, yet to be tested, both stable and unstable from several different custom ROMs, with different changes in source code for further experimentations to fix build bugs and issues. If installing on your own personal device, proceed with caution, and kindly follow instructions given by builder.
    Leader badge
    Downloads: 90 This Week
    Last Update:
    See Project
  • 11
    libusbx

    libusbx

    libusbx is OBSOLETE - use http://libusb.info

    libusbx is OBSOLETE and has been superseded by http://libusb.info
    Downloads: 27 This Week
    Last Update:
    See Project
  • 12

    UnboundID LDAP SDK for Java

    A Java-based LDAP API

    A fast, comprehensive, and easy-to-use Java API for communicating with LDAP directory servers and performing related tasks like reading and writing LDIF, encoding and decoding data using base64 and ASN.1 BER, and performing secure communication.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 13
    ffsend

    ffsend

    Easily and securely share files from the command line

    Easily and securely share files and directories from the command line through a safe, private and encrypted link using a single simple command. Files are shared using the Send service and may be up to 1GB. Others are able to download these files with this tool, or through their web browser. All files are always encrypted on the client, and secrets are never shared with the remote host. An optional password may be specified, and a default file lifetime of 1 (up to 20) download or 24 hours is enforced to ensure your stuff does not remain online forever. This provides a secure platform to share your files. History tracking your files for easy management, ability to use your own Send hosts. Inspect or delete shared files, accurate error reporting. Streaming encryption and uploading/downloading, very low memory footprint. Intended for use in scripts without interaction.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Android Tablet 7.1.2 on Virtual Machines
    Instructions: After starting this VM, enable the Play Store app, by clicking the Settings -> Apps -> Play Store -> Enable. Then, Launch Play Store App, by clicking the 3 vertical dots icon, at the bottom of desktop. Then download whatever app is needed from the Play Store. Quickly, Cancel any automatic downloads of Play Store app ( itself ), from the notification drawer, as this will prevent it from its future working. Disable the Play Store app, after your other app installs are completed. Increase CPU Count and Memory in VM's Settings, as required, for better performance. If you are very new to virtual machines, then please refer the Wiki Page for its setup instructions, for all major operating systems. Tags: Android Tablet, Android ova, Android Phone, Android OS, Android Operating System, Android Emulator, Android Simulator, android apps, apk, virtual machine
    Downloads: 21 This Week
    Last Update:
    See Project
  • 15
    T-Mobile G6 Firmware

    T-Mobile G6 Firmware

    Repacked Firmware for the T-Mobile LG G6 H872

    This project is a collection of repacked firmware images for the T-Mobile LG G6 (h872). It includes flashable, stock firmware and other flashable folders/partitions as well as custom stock roms and kernels.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 16
    Easy-HotSpot

    Easy-HotSpot

    A super easy WiFi hotspot user management utility for Mikrotik router

    Easy HotSpot, A super easy WiFi hotspot user management utility for Mikrotik RouterOS based Router devices and works using the PHP PEAR2 API client by boenrobot. This PHP/MySql/Bootstrap based package can be installed in any supporting OS in a local webserver of the client or in any internet based webservers of choice. Put the contents/source code in the root or in a sub folder of the host/domain, as required. A MySql database need to be created in order to work, but the package will create the database, if one doesn't exist on initialisation. The details of the database need to be given in the dbconfig.php file by editing it. The details of the router device also need to be entered in the config.php file prior to operations. A preliminary visual documentation is available at http://hotspot.zetozone.com Easy HotSpot is suitable for WiFi hotspots of any size and capacity, but equipped with a MikroTik routerOS based device.
    Leader badge
    Downloads: 15 This Week
    Last Update:
    See Project
  • 17
    Asphyre

    Asphyre

    Asphyre is a cross-platform framework for Delphi and FreePascal.

    Asphyre, also known as Platform eXtended Library, is a cross-platform framework for developing video games and scientific applications in Delphi, and FreePascal/Lazarus. The framework provides facilities for real-time rendering of graphics (using DirectX, OpenGL or Software Renderer), text output, mathematics (including vectors and matrices) and networking communication, among other features. It also supports singleboard devices such as Raspberry PI, Intel Galileo, BeagleBone Black and others with features like GPIO, SPI, I2C and so on, along with external displays, sensors and other peripheral devices.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 18
    Live CD With Zerofree Utility i686 32Bit

    Live CD With Zerofree Utility i686 32Bit

    A Custom Puppy Linux Live CD With Zerofree Utility i686 32 Bit

    After Booting with this Live CD, just click on the CDROM icon on the Desktop, to open its folder contents, then Right Click the zerofree.sh file and Choose the "Run in Terminal" option and then follow the instructions shown on the terminal. As you may be aware, Booting with a Live CD, requires that you need to change the Boot Order on your System / Guest BIOS, quickly on startup, by pressing either F2 OR F12 OR F10 OR an equivalent key and then change the Boot Order to boot from the CDROM first. Some Hints: Puppy Linux Live CDs show some dialogs / settings window on first startup / first shutdown. Feel free to dismiss / close them, if you do not want to make any changes, to the live cd's operation, next time, on the same system. This will not affect the zerofree's work in any way. Apart from this, using the Internet Browser, built in, would require a Free Memory of 1 GB or more, for better Performance ( as it is generally a memory intensive activity )
    Downloads: 10 This Week
    Last Update:
    See Project
  • 19
    Gideros Mobile

    Gideros Mobile

    Cross platform SDK

    Develop your app in Lua language and export it to most popular platforms, from desktop PC and Mac to mobile (Android, iOS, Windows Phone) and even Web. While Gideros is mainly dedicated to game development, it is also a good fit for professional apps. Code once, run everywhere! Intro documentation: http://docs.giderosmobile.com/ Reference documentation: http://docs.giderosmobile.com/reference/ Forum: http://giderosmobile.com/forum Full source code: https://github.com/gideros/gideros
    Downloads: 3 This Week
    Last Update:
    See Project
  • 20

    tinyfilemanager

    Web based File Manager in PHP, Single File and light weight

    Tiny PHP File Manager It is a simple, fast and small file manager with single php file. It is also a web code editor. It'll run either online or locally, on Linux, Windows or Mac based platforms. The only requirement is to have PHP 5.5+ available.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    CandyROMs

    CandyROMs

    CandyRoms is a custom Android ROM by enthusiasts

    The purpose of this project is to provide the downloads and OTA capability for our releases of Android for a host of different Android devices. This site provides Official releases, which means they come from Official Device Maintainers who support them. They are shared here as a free service to you as a part of our enthusiast modus operandi."Taste the Sweetness!"
    Downloads: 5 This Week
    Last Update:
    See Project
  • 22
    Live CD With Zerofree Utility AMD 64 Bit

    Live CD With Zerofree Utility AMD 64 Bit

    A Custom Puppy Linux Live CD With Zerofree Utility AMD 64 Bit

    After Booting with this Live CD, just click on the CDROM icon at the bottom of the Desktop, to open its folder contents, then Right Click the zerofree.sh file and Choose the "Run in Terminal" option and then follow the instructions shown on the terminal. As you may be aware, Booting with a Live CD, requires that you need to change the Boot Order on your System / Guest BIOS, quickly on startup, by pressing either F2 OR F12 OR F10 OR an equivalent key and then change the Boot Order to boot from the CDROM first. Some Hints: Puppy Linux Live CDs show some dialogs / settings window on first startup / first shutdown. Feel free to dismiss / close them, if you do not want to make any changes, to the live cd's operation, next time, on the same system. This will not affect the zerofree's work in any way. Apart from this, using the Internet Browser, built in, would require a Free Memory of 1 GB or more, for better Performance ( as it is generally a memory intensive activity )
    Downloads: 4 This Week
    Last Update:
    See Project
  • 23
    Microlog is a small, yet powerful logging library for mobile devices based on the Log4j API. Supports Java ME (J2ME) and Android. Logs to device, to PC or to servers online. Used in all phases from development on emulator/device to outdoor field-testing.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    BMDFM

    BMDFM

    Binary Modular DataFlow Machine (BMDFM)

    Binary Modular DataFlow Machine (BMDFM) is a software package that enables running an application in parallel on shared memory symmetric multiprocessing (SMP) computers using the multiple processors to speed up the execution of single applications. BMDFM automatically identifies and exploits parallelism due to the static and mainly dynamic scheduling of the dataflow instruction sequences derived from the formerly sequential program. The BMDFM dynamic scheduling subsystem performs a symmetric multiprocessing (SMP) emulation of a tagged-token dataflow machine to provide the transparent dataflow semantics for the applications. No directives for parallel execution are needed. More info: http://www.bmdfm.com
    Downloads: 3 This Week
    Last Update:
    See Project
  • 25
    Live CD With Zerofree Utility x86 32Bit

    Live CD With Zerofree Utility x86 32Bit

    A Custom Puppy Linux Live CD With Zerofree Utility x86 32Bit

    After Booting with this Live CD, just click on the MOUNT Application icon on the top of the Desktop, then click the Mount Button that is besides the CDROM entry only, to open its folder contents, then Right Click the zerofree.sh file and Choose the "Window" -> "Terminal Here" option and then type ./zerofree.sh and press Enter Key on the Terminal and follow the instructions shown on the terminal. As you may be aware, Booting with a Live CD, requires that you need to change the Boot Order on your System / Guest BIOS, quickly on startup, by pressing either F2 OR F12 OR F10 OR an equivalent key and then change the Boot Order to boot from the CDROM first. Some Hints: Puppy Linux Live CDs show some dialogs / settings window on first startup / first shutdown. Feel free to dismiss / close them, if you do not want to make any changes, to the live cd's operation, next time, on the same system. This will not affect the zerofree's work in any way.
    Downloads: 3 This Week
    Last Update:
    See Project
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