Open Source Java Software

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

  • Multi-Tenant Analytics Software Built for Development Teams Icon
    Multi-Tenant Analytics Software Built for Development Teams

    Qrvey is the only solution for embedded analytics with a built-in data lake.

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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 3,941,073 This Week
    Last Update:
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  • 2
    SAP NetWeaver Server Adapter for Eclipse

    SAP NetWeaver Server Adapter for Eclipse

    Integrates Eclipse with the SAP NetWeaver Application Server

    Integrates Eclipse with the SAP NetWeaver Application Server.
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    Downloads: 611,567 This Week
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  • 3
    TurboVNC

    TurboVNC

    High-speed, 3D-friendly, TightVNC-compatible remote desktop software

    TurboVNC is a high-performance, enterprise-quality version of VNC based on TightVNC, TigerVNC, and X.org. It contains a variant of Tight encoding that is tuned for maximum performance and compression with 3D applications (VirtualGL), video, and other image-intensive workloads. TurboVNC, in combination with VirtualGL, provides a complete solution for remotely displaying 3D applications with interactive performance. TurboVNC's high-speed encoding methods have been adopted by TigerVNC and libvncserver, and TurboVNC is also compatible with any other TightVNC derivative. TurboVNC forked from TightVNC in 2004 and still covers all of the TightVNC 1.3.x features, but TurboVNC contains numerous feature enhancements and bug fixes relative to TightVNC, and it compresses 3D and video workloads much better than TightVNC while using generally only 5-20% of the CPU time of the latter. Using non-default settings, TurboVNC can also be made to compress 2D workloads as "tightly" as TightVNC.
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    Downloads: 168,051 This Week
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  • 4
    libjpeg-turbo

    libjpeg-turbo

    SIMD-accelerated libjpeg-compatible JPEG codec library

    libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs. libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.
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    Downloads: 90,099 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

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  • 5
    Sweet Home 3D

    Sweet Home 3D

    An interior design application to draw house plans & arrange furniture

    Sweet Home 3D is an interior design application that helps you to quickly draw the floor plan of your house, arrange furniture on it, and visit the results in 3D.
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    Downloads: 55,429 This Week
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  • 6
    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: 39,374 This Week
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  • 7
    GeoServer
    GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards: WMS, WFS, WCS, WPS and REST
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    Downloads: 21,654 This Week
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  • 8
    Weka

    Weka

    Machine learning software to solve data mining problems

    Weka is a collection of machine learning algorithms for solving real-world data mining problems. It is written in Java and runs on almost any platform. The algorithms can either be applied directly to a dataset or called from your own Java code.
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    Downloads: 16,175 This Week
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  • 9
    Doxygen
    Doxygen is a JavaDoc like documentation system for C++, C, Java and IDL.
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    Downloads: 15,178 This Week
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  • Manage printing in a cost-efficient and eco-friendly way with Gelato. Icon
    Manage printing in a cost-efficient and eco-friendly way with Gelato.

    Gelato offers an extensive catalog of custom products, a zero-inventory business model, and free designing tools—all in one place.

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  • 10
    Logisim
    An educational tool for designing and simulating digital logic circuits, featuring a simple-to-learn interface, hierarchical circuits, wire bundles, and a large component library. As a Java application, it can run on many platforms.
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    Downloads: 14,932 This Week
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  • 11
    Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
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    Downloads: 11,369 This Week
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  • 12

    GeographicLib

    Geographic library

    GeographicLib is a small C++ library for: geodesic and rhumb line calculations; conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates; gravity (e.g., EGM2008) and geomagnetic field (e.g., WMM2020) calculations.
    Leader badge
    Downloads: 9,641 This Week
    Last Update:
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  • 13
    Freeplane

    Freeplane

    Application for Mind Mapping, Knowledge and Project Management

    Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.
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    Downloads: 7,945 This Week
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  • 14
    OpenCV

    OpenCV

    Open Source Computer Vision Library

    The Open Source Computer Vision Library has >2500 algorithms, extensive documentation and sample code for real-time computer vision. It works on Windows, Linux, Mac OS X, Android, iOS in your browser through JavaScript. Languages: C++, Python, Julia, Javascript Homepage: https://opencv.org Q&A forum: https://forum.opencv.org/ Documentation: https://docs.opencv.org Source code: https://github.com/opencv Please pay special attention to our tutorials! https://docs.opencv.org/master Books about the OpenCV are described here: https://opencv.org/books.html
    Leader badge
    Downloads: 6,961 This Week
    Last Update:
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  • 15
    Webmin

    Webmin

    A web-based interface for system administration of UNIX

    A web-based system administration tool for Unix servers and services. https://github.com/webmin/webmin
    Leader badge
    Downloads: 6,373 This Week
    Last Update:
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  • 16
    OpenGApps

    OpenGApps

    OpenGApps daily releases

    Leader badge
    Downloads: 36,705 This Week
    Last Update:
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  • 17
    libsdl-android

    libsdl-android

    SDL library for Android, including several games.

    Port of SDL library to Android mobile platform. There are also several games inside the repository, along with their sources and build files. Both SDL 1.2 and 1.3/2.0 versions are supported (1.3/2.0 support is experimental) Sources are at https://github.com/pelya/commandergenius
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    Downloads: 6,425 This Week
    Last Update:
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  • 18
    GmsCore

    GmsCore

    Free implementation of Play Services

    microG GmsCore is a FLOSS (Free/Libre Open Source Software) framework to allow applications designed for Google Play Services to run on systems, where Play Services is not available. The linux-based open-source mobile operating system Android is not only the most popular mobile operating system in the world, it’s also on the way to becoming a proprietary operating system. How is that? While the core operating system is still released as part of the Android Open Source Project, the majority of core apps are not. It gets worse: More and more libraries and APIs are only available on phones that run various Google apps pre-installed, effectively locking third-party apps to the Google ecosystem. For these reasons Android is described as being a “look but don’t touch” kind of open. At this point, several popular open-source applications already require some of Google’s proprietary libraries to be installed.
    Downloads: 1,306 This Week
    Last Update:
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  • 19
    FreeMind

    FreeMind

    A premier mind-mapping software written in Java

    A mind mapper, and at the same time an easy-to-operate hierarchical editor with strong emphasis on folding. These two are not really two different things, just two different descriptions of a single application. Often used for knowledge and content management.
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    Downloads: 5,043 This Week
    Last Update:
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  • 20
    JavaVi - vi/vim editor clone
    jVi is a vi/vim editor clone built on top of the javax.swing.text package. Available for NetBeans and JBuilder. jVi is designed to quickly and easily integrate into many disparate java based desktop apps, from IDE's to mail-news readers.
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    Downloads: 4,656 This Week
    Last Update:
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  • 21
    JADX

    JADX

    Dex to Java decompiler

    Command-line and GUI tools for producing Java source code from Android Dex and apk files. Decompile Dalvik bytecode to java classes from APK, dex, aar, aab and zip files. Decode AndroidManifest.xml and other resources from resources.arsc. Deobfuscator included. Be aware, Android Studio can interfere with jadx debugger, so it is better to close it before attaching to the process in jadx. Smali debugger, check wiki page for setup and usage. View decompiled code with highlighted syntax.
    Downloads: 1,013 This Week
    Last Update:
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  • 22
    plantuml
    PlantUml allows to quickly create some UML diagram using a simple textual description language.
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    Downloads: 4,353 This Week
    Last Update:
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  • 23
    ophcrack

    ophcrack

    A Windows password cracker based on rainbow tables

    Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.
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    Downloads: 4,933 This Week
    Last Update:
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  • 24
    CiteSpace

    CiteSpace

    A widely used tool for visual exploration of scientific literature.

    Visit the new site: https://citespace.podia.com CiteSpace generates interactive visualizations of structural and temporal patterns and trends of a scientific field. It facilitates a systematic review of a knowledge domain through an in-depth visual analytic process. It can process citation data from popular sources such as the Web of Science, Scopus, Dimensions, and the Lens. CiteSpace also supports basic visual analytic functions for datasets without citation-related information, for example, PubMed, CNKI, ProQuest Dissertations and Theses. CiteSpace reveals how a field of research has evolved, what intellectual turning points are evident along a critical path, and what topics have attracted attention. CiteSpace can be applied repeatedly so as to track the development of a field closely and extensively. The e-book How to Use CiteSpace explains the design principles and functions along with illustrative examples in more detail: https://leanpub.com/howtousecitespace
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    Downloads: 7,928 This Week
    Last Update:
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  • 25
    PMD

    PMD

    A source code analyzer

    PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth. It supports Salesforce.com Apex, Java, JavaScript, XML, XSL. Additionally it includes CPD, the copy-paste-detector. CPD finds duplicated code in Java, C, C++, C#, PHP, Ruby, Fortran, JavaScript, Matlab, Swift. You can fork us on https://github.com/pmd
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    Downloads: 3,523 This Week
    Last Update:
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