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.

  • Easily Host LLMs and Web Apps on Cloud Run Icon
    Easily Host LLMs and Web Apps on Cloud Run

    Run everything from popular models with on-demand NVIDIA L4 GPUs to web apps without infrastructure management.

    Run frontend and backend services, batch jobs, host LLMs, and queue processing workloads without the need to manage infrastructure. Cloud Run gives you on-demand GPU access for hosting LLMs and running real-time AI—with 5-second cold starts and automatic scale-to-zero so you only pay for actual usage. New customers get $300 in free credit to start.
    Try Cloud Run Free
  • Go from Data Warehouse to Data and AI platform with BigQuery Icon
    Go from Data Warehouse to Data and AI platform with BigQuery

    Build, train, and run ML models with simple SQL. Automate data prep, analysis, and predictions with built-in AI assistance from Gemini.

    BigQuery is more than a data warehouse—it's an autonomous data-to-AI platform. Use familiar SQL to train ML models, run time-series forecasts, and generate AI-powered insights with native Gemini integration. Built-in agents handle data engineering and data science workflows automatically. Get $300 in free credit, query 1 TB, and store 10 GB free monthly.
    Try BigQuery Free
  • 1
    uGet - Download Manager
    uGet, the Best Download Manager for Linux. uGet is a lightweight yet powerful Open Source download manager for GNU/Linux developed with GTK+, which also comes packaged as a portable Windows app. - Quick Links - Features: https://ugetdm.com/features Screenshots: https://ugetdm.com/screenshots Blog: https://ugetdm.com/blog Support: https://ugetdm.com/qa Frequently Asked Questions (FAQs): https://ugetdm.com/qa/faq RSS Feed: https://ugetdm.com/rss GitHub: https://github.com/ugetdm
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    Downloads: 591 This Week
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  • 2
    SoftEther VPN

    SoftEther VPN

    Cross-platform multi-protocol VPN software

    An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful and easy-to-use multi-protocol VPN software. It runs on Windows, Linux, Mac, FreeBSD and Solaris. SoftEther VPN is an optimum alternative to OpenVPN and Microsoft's VPN servers. SoftEther VPN has a clone-function of OpenVPN Server. You can integrate from OpenVPN to SoftEther VPN smoothly. SoftEther VPN is faster than OpenVPN. SoftEther VPN also supports Microsoft SSTP VPN for Windows Vista / 7 / 8. No more need to pay expensive charges for Windows Server license for Remote-Access VPN function.
    Downloads: 116 This Week
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  • 3
    Ghost Commander
    Dual panel Android file manager (like Norton or Total Commander). Aside the /sdcard it works with FTP servers, Windows (Samba) network shares (with a plug-in), ZIP archives, etc. Lots more features and customization settings are there. Feel free to add a feature request here: http://tinyurl.com/gc-user Report bugs and issues: http://tinyurl.com/gc-issue
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    Downloads: 217 This Week
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  • 4
    Udp2raw-tunnel

    Udp2raw-tunnel

    Turns UDP traffic into encrypted UDP/fakeTCP/ICMP traffic

    A tunnel which turns UDP traffic into encrypted fakeTCP/UDP/ICMP traffic by using Raw Socket, helps you bypass UDP FireWalls(or unstable UDP environment). When used alone, Udp2raw tunnels only UDP traffic. Nevertheless, if you used udp2raw + any UDP-based VPN together, you can tunnel any traffic(include TCP/UDP/ICMP), currently, OpenVPN/L2TP/ShadowVPN and tinyfecVPN are confirmed to be supported. Linux host (including desktop Linux,Android phone/tablet,OpenWRT router,or Raspberry PI) with root account or cap_net_raw capability. ICMP/FakeTCP headers help you bypass UDP blocking, UDP QOS or improper UDP NAT behavior on some ISPs. In ICMP header mode,udp2raw works like an ICMP tunnel. UDP headers are also supported. In UDP header mode, it behaves just like a normal UDP tunnel, and you can just make use of the other features (such as encryption, anti-replay, or connection stalization).
    Downloads: 23 This Week
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  • Managed MySQL, PostgreSQL, and SQL Databases on Google Cloud Icon
    Managed MySQL, PostgreSQL, and SQL Databases on Google Cloud

    Get back to your application and leave the database to us. Cloud SQL automatically handles backups, replication, and scaling.

    Cloud SQL is a fully managed relational database for MySQL, PostgreSQL, and SQL Server. We handle patching, backups, replication, encryption, and failover—so you can focus on your app. Migrate from on-prem or other clouds with free Database Migration Service. IDC found customers achieved 246% ROI. New customers get $300 in credits plus a 30-day free trial.
    Try Cloud SQL Free
  • 5
    Polarity Browser

    Polarity Browser

    A fast, secure, stable web browser powered by Chromium and Trident.

    Polarity is a dual engine browser powered by both Chromium and Trident that focuses on system efficiency by bringing low RAM and low CPU usage. This browser was also programmed to be optimized for Windows with an Android version available. Browse the web with an uncomplicated UI that is highly customizable with themes, apps, and extensions from the Polarity Store, GreasyFork, OpenUserJS, and UserStyles. Polarity also comes with a built in password manager which safely encrypts all data to prevent theft. Polarity also comes with a built in adblocker and privacy tools such as proxy/VPN support and header masking to prevent further tracking online. If you appreciate all the hard work that we put into creating and developing Polarity, please consider giving a small donation at: https://polaritybrowser.netlify.com/donate
    Downloads: 47 This Week
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  • 6
    OpenNMS

    OpenNMS

    A Java based fault and performance management system

    An Enterprise-Grade Network Management Application Platform that is 100% Free and Open Source Software.
    Downloads: 30 This Week
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  • 7
    Turbo Download Manager

    Turbo Download Manager

    A portable modern multi-threading download manager for all platforms

    A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip
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    Downloads: 60 This Week
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  • 8
    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: 1 This Week
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  • 9
    MeanOS

    MeanOS

    The smallest and the most powerful operating system.

    The first decentralized, artificially intelligent, MEAN.js stack, operating system. Mean OS is the only operating system hosted anonymous using a P2P network and a suite of non-standard in-browser delivery mechanisms. Mean OS is specifically designed to support both Brave and Tor but is compatible with all other major browsers. Mean OS is Proud to be a BRAVE and TOR supporter, be free!!
    Downloads: 8 This Week
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  • Cut Cloud Costs with Google Compute Engine Icon
    Cut Cloud Costs with Google Compute Engine

    Save up to 91% with Spot VMs and get automatic sustained-use discounts. One free VM per month, plus $300 in credits.

    Save on compute costs with Compute Engine. Reduce your batch jobs and workload bill 60-91% with Spot VMs. Compute Engine's committed use offers customers up to 70% savings through sustained use discounts. Plus, you get one free e2-micro VM monthly and $300 credit to start.
    Try Compute Engine
  • 10
    pinvault-pro-extension

    pinvault-pro-extension

    AI-powered browser extension for bulk downloading Pinterest images wit

    PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: • Visual checkbox overlays on Pinterest images for intuitive selection • AI-powered auto-scroll with smart content detection • Bulk download capabilities with real-time progress tracking • HD quality preservation in original resolution • Modern glassmorphism interface design • Privacy-focused architecture with no external servers • Cross-browser compatibility (Firefox, Chrome, Edge, Opera) • Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: • Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) • Chrome/Edge: Manifest V3 compatible (60.0 KB package) • Opera: Manifest V3 compatible (60.3 KB package)
    Downloads: 6 This Week
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  • 11
    ( pro ping )pinger network alert monitor

    ( pro ping )pinger network alert monitor

    Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY

    Thank you for your DONATIONS for Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY. Look on the tab files, select and download the version of the operating system that you need of this slight textual code that requires no system update. Network monitoring analyzer, network scanner with ping, traceroute and beeper alert and warning mail sender. Capable of scanning IP INFINIT, automatic detection of the source of network interruptions without GUI interface configurations. More, it is designed for the computer technician who carries a powerful tool in the USB key. In addition, an audible alarm warns you via Telnet or SSH terminal, a log files recorded can be used to convey specific information to the system administrator. It is comes with a configurable for warning by email. lightweight code, coming with the source files, written in C, Email warning sender, ANDROID ping, SPARC, AMD64, traceroute, DETECT SOURCE Downs, Warning by Email, C language
    Downloads: 5 This Week
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  • 12

    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: 5 This Week
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  • 13
    QRemoteControl-Server

    QRemoteControl-Server

    QRemoteControl is a remote control application for your mobile phone.

    QRemoteControl is a remote control application for your mobile phone. This is the server part of QRemoteControl. The client application is currently available for Android, Blackberry, MeeGo and Symbian. You can download the client software and precompiled versions for Linux and the Raspberry Pi here: http://qremote.org/download.php#Download
    Downloads: 3 This Week
    Last Update:
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  • 14

    webfolder

    Remote web interfaced file manager

    Remote web interfaced file manager capable to run anywhere including Android and BlackBerry devices. Easy intuitive interface and powerful files management capabilities.
    Downloads: 4 This Week
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  • 15
    DropYet

    DropYet

    It's the simple cloud.

    With DropYet you can manage your personal files in the easiest way. And it's not that bad looking. :) Enjoy the security, simplicity and beauty of DropYet. Upload, rename and delete files. The simpliest manager of files and folders. Furthermore, there are more features like securely sharing files, password encryption and encrypted file detection. Setting it up is easier than ever before. Just try DropYet. Currently working on MORE features for you. Now with Dark Mode! Requirements: PHP (recommended is 7 and higher), HTML, cURL, sendmail Read everything else on our website! :) https://dropyet.maximiliansixdorf.de/en
    Downloads: 2 This Week
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  • 16
    KeexyBox

    KeexyBox

    The box to keep the Internet under your control

    KeexyBox allows you to do parental control, block ads, limit telemetry, and browse the Internet anonymously from your home network without installing any software on your devices. It also can be used to create a public wireless access point with the captive portal. It is a software program which requires a Raspberry PI box and which is installed on Raspbian. It constitutes a cut-off point between your devices (computers, tablets, smartphones, etc.) and your router or Internet box. KeexyBox acts as a default gateway and DNS server for the devices in your home network. It thus intercepts all connections to the Internet to carry out website filtering or to activate browsing via the Tor anonymity network according to connection profiles which you have configured.
    Downloads: 3 This Week
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  • 17

    JRF

    Java Remote File - RemoteInputStream and RemoteOutputStream.

    JRF is a client/server application that allows to extend local storage to other computers running the JRF Server. It has been designed for ultra-simplicity, **not for security!** It does not request for authentication when accessing files on a remote server, nor does it prevent access to files or directories. It has been designed for already-secured networks (e.g. LANs or inside VPNs), where file-sharing setup is tedious (or impossible). Basic access configuration/restriction should be performed on the OS, by changing rights of the user running the JRF Server. It is like an insecure FTP-like file sharing runnning on a single TCP port. Its Java nature gives Java programmers access to remote files as remote `InputStream` and `OutputStream`, with the added value of optionally **compressing data exchange** to ease up network usage.
    Downloads: 2 This Week
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  • 18
    RabbitProxyServer
    Proxy server. There are the read-only mirror of github. Home: https://github.com/KangLin/RabbitProxyServer.git
    Downloads: 1 This Week
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  • 19
    Enteron 18

    Enteron 18

    Surfing to the future

    Enteron is a brand that evolved much in the last two years. Since the Enteron 1, this product went into a browser that is available for almost all platforms. Fast, secure and with a good interface the new Enteron 18 debuted officially in 5th January. License: Proprietary
    Downloads: 0 This Week
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  • 20
    Downloads: 0 This Week
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  • 21
    NXLog

    NXLog

    A multi-platform universal log collector and forwarder

    NXLog is a modular, multi-threaded, high-performance log management solution with multi-platform support. In concept it is similar to syslog-ng or rsyslog but is not limited to unix/syslog only. It can collect logs from files in various formats, receive logs from the network remotely over UDP, TCP or TLS/SSL . It supports platform specific sources such as the Windows Eventlog, Linux kernel logs, Android logs, local syslog etc. Writing and reading logs to/from databases is also supported. The collected logs can be stored into files, databases or forwarded to a remote log server using various protocols. The old BSD Syslog and the newer IETF syslog standard is fully supported by NXLog in addition to Snare, XML, JSON, GELF, KVP, CSV and custom formats. A key concept in NXLog is to be able to handle and preserve structured logs. No need to convert everything to syslog and parse these logs again at the other side. It has powerful message filtering, log rewrite and conversion capabilities.
    Downloads: 0 This Week
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  • 22
    Pye

    Pye

    Pye - Javascript Engine For Drawing Fast, Fluid and Dynamic Pie Charts

    Pye is a JavaScript engine for drawing beautiful pie charts that are fast, fluid and dynamic and can be easily modified dynamically. As great new web technologies progress, it is handy to have a handy script or utility to do the job efficiently and quickly.
    Downloads: 0 This Week
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  • 23
    QRemoteControl-Client

    QRemoteControl-Client

    QRemoteControl is a remote control application for your mobile phone.

    QRemoteControl is a remote control application for your mobile phone. This is the client part of QRemoteControl. The client application is currently available for Android, Blackberry, MeeGo and Symbian. You can download the client software and precompiled versions for Linux and the Raspberry Pi here: http://qremote.org/download.php#Download The source code is now hosted on GitHub: https://github.com/strahlex/QRemoteControl-Client
    Downloads: 0 This Week
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  • 24
    "Virtual Infrastructure for Applications and Services Over IP" ViaSIP_NG using latest OpenCloudComputing recommendations to develop Scalable Private-Public cloud platforms. ViaSIP is leveraging ODS - LinkedData, CouchDB, Eucalypus, DatR.ws & Web2Py.
    Downloads: 0 This Week
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  • 25

    curl is at curl.se

    curl is at curl.haxx.se

    curl is at curl.se
    Downloads: 0 This Week
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