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Open Source Java Software

Java Software

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.

  • Relax: PRTG Monitors Your IT for You Icon
    Relax: PRTG Monitors Your IT for You

    Stay in control and avoid IT headaches. PRTG monitors your network, devices, and apps - receive alerts when it matters most.

    You’re the go-to IT person, always putting out fires and keeping things running. With PRTG, you get reliable alerts to monitor your entire IT infrastructure, without the noise. Our intuitive setup gives you a clear overview of your network, devices, and applications in real time. Get instant alerts only when something needs your attention, whether you’re at your desk or on the move. Spend less time worrying about outages and more time focusing on what matters. Set up PRTG once and let it work for you - PRTG has you covered.
    Start Your Free PRTG Trial Now
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 1
    OmegaT - multiplatform CAT tool

    OmegaT - multiplatform CAT tool

    The free computer aided translation (CAT) tool for professionals

    OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
    Leader badge">
    Downloads: 2,346 This Week
    Last Update:
    See Project
  • 2
    FreeCol

    FreeCol

    Colonize the New World.

    FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found here: https://github.com/FreeCol/freecol/releases If you want to contribute to Freecol please visit our welcome information thread to see how here: https://sourceforge.net/p/freecol/discussion/719661/thread/2d0063a3bc/
    Leader badge">
    Downloads: 459 This Week
    Last Update:
    See Project
  • 3
    DictionaryForMIDs

    DictionaryForMIDs

    Dictionary for Mobile Information Devices and PCs

    DictionaryForMIDs is an dictionary application for cell phones, tablets and PCs. The dictionary is completely installed on the device ("offline dictionary"), i.e. after installation there is no need for an internet connection. DictionaryForMIDs can be set up for any dictionary, for any language, or for any other lookup-purpose. The DfM-Creator tool is used to set up a dictionary for use with DictionaryForMIDs.
    Downloads: 52 This Week
    Last Update:
    See Project
  • 4
    FCKeditor

    FCKeditor

    FCKeditor (retired)

    FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com
    Downloads: 39 This Week
    Last Update:
    See Project
  • Fully managed relational database service for MySQL, PostgreSQL, and SQL Server Icon
    Fully managed relational database service for MySQL, PostgreSQL, and SQL Server

    Focus on your application, and leave the database to us

    Cloud SQL manages your databases so you don't have to, so your business can run without disruption. It automates all your backups, replication, patches, encryption, and storage capacity increases to give your applications the reliability, scalability, and security they need.
    Try for free
  • 5
    Frost
    Freenet front end written in Java. Supports multiple up/downloads, messages, searching and more.
    Downloads: 109 This Week
    Last Update:
    See Project
  • 6
    Pauker is a generic flashcard program written in Java. It uses an innovative combination of ultra-shortterm, shortterm and longterm memory. You can use it to learn all the things you never want to forget, like vocabularies, capitals, important dates,
    Downloads: 19 This Week
    Last Update:
    See Project
  • 7
    Jalmus is a free, open source music education software helping the musicians, especially pianists, to improve their sight-reading. You can train to read music with both exercises on notes or rhythms.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 8
    jMemorize is written in Java and uses Leitner flashcards to make memorizing facts not only more efficient but also more fun. Please note that the project is now maintained on https://github.com/riadd/jMemorize
    Downloads: 14 This Week
    Last Update:
    See Project
  • 9
    Sudokuki - essential sudoku game

    Sudokuki - essential sudoku game

    Sudokuki is a free graphical SUDOKU game

    Sudokuki is a free graphical SUDOKU game: Sudokuki solves even the most difficult sudoku grids for you - Generate a sudoku - Play sudoku - Print a sudoku... Available in 17 languages. Just download and play! You can also play with arabic or chinese numbers. Sudokuki is Free Software developed in Java. Have fun!
    Downloads: 18 This Week
    Last Update:
    See Project
  • Cloud data warehouse to power your data-driven innovation Icon
    Cloud data warehouse to power your data-driven innovation

    BigQuery is a serverless and cost-effective enterprise data warehouse that works across clouds and scales with your data.

    BigQuery Studio provides a single, unified interface for all data practitioners of various coding skills to simplify analytics workflows from data ingestion and preparation to data exploration and visualization to ML model creation and use. It also allows you to use simple SQL to access Vertex AI foundational models directly inside BigQuery for text processing tasks, such as sentiment analysis, entity extraction, and many more without having to deal with specialized models.
    Try for free
  • 10
    ScoreDate

    ScoreDate

    ScoreDate is a software to learn music reading and ear training

    ScoreDate is your date with the music ! It is an open source software written in Java that helps musicians to learn music reading. It also helps you with ear training. It is suitable for any skill, from beginners to professional users. From slow training to first sight reading.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 11
    A flash card program that aids in extremely efficient memorization (ph#s, birthdays, math,...). Helps you memorize items around 10 to 50 times faster than with regular flash cards. Similar to SuperMemo. Works on PocketPC, Palm, Windows, Linux, and more.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 12
    Tiny Java RSS / RDF / Atom Aggregator for desktop. Using Thinlet as interface, it's goal is to provide a cross-platform and lightweight feeder. Skins, antialiasing and multi-language support, because news reading needs to be the most pleasant possible!
    Downloads: 5 This Week
    Last Update:
    See Project
  • 13
    Java Train Simulator

    Java Train Simulator

    A train simulator wroten in Java.

    This a train simulator developped in Java language. This software works with the JRE6. It uses Java Monkey Engine to get the 3D render.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 14
    Snore Trainer, a small java program that listens and when it is too loud beeps. Biofeedback then hopefully trains one to snore less. For sleep with less snoring.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    A webmail-client (POP3, IMAP, SMTP) written in Java as a webapp. Very easy to install - just throw the WAR-file into the deployment-directory of your Servlet-container (tomcat, jetty, weblogic, ..) and you're ready! Test ride on the yawebmail-Homepage!
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Obfunae is an interpreter for the Obfuna esoteric programming language.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Almond Framework
    Almond Java Application Framework is an easy to use Swing based framework for Java applications. Almond is very much inspired by the K Desktop Environment.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Calculation of shifts. For mobile devices with JAVA MIDP 1.0 . Расчет смен на мобильных устройствах с JAVA MIDP 1.0 .
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Calculation of shifts for Android
    The program can expect for any date the state of changing (work/day off) for the different types of non-standard office hours, as that: three in three days (bar, shop) days through three (guard) day, night, two days off (port) Creation of description of other office hours is possible, it is possible to set seven shifts of different duration. GNU General Public License
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Calculation of shifts for pub 317

    Calculation of shifts for pub 317

    Can be calculated for any date in the changeable (work - output)

    The program can be calculated for any date in the changeable (work - output) for bartenders pub "317" (Illichivsk, Ukraine).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    CustomCoded

    CustomCoded

    Sistema operacional Linux baseado no Ubuntu

    O Sistema Operacional CustomCoded é a unificação de variadas ferramentas para Linux que facilitam o uso do sistema operacional por usuários sem capacitação no mesmo, e, ao mesmo tempo, oferecer para o usuário um ambiente agradável, simples e eficaz de ser usado, além disso, totalmente gratuito e livre de vírus. O uso do sistema prevê menor uso de sistema utilizado sem licença (pirata) e o aumento da popularidade dos sistemas baseados em Linux, que atualmente ainda são muito baixos em relação ao seu concorrente Windows.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    The foundation of this project is the dicepanel, a dice roller. A couple of classic dicegames will be included too, such as Yatzee. This project is using the Almond framework and it is runnable with Java Web Start.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    The Esperanto SMS Sender is a JavaME software for sending SMS using the "x-system". The software is intended for MIDP 2.0, CLDC 1.1 compatible mobile devices such as mobile phones, smartphones, etc. Download the JAR file onto your mobile device and run
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24

    Esperanto tekstokonverta ilo

    Tool to convert Esperanto characters

    This is a tool that converts your Esperanto text so that characters marked with X are converted to accented Esperanto letters.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25

    LanguageTool

    Proofreading Software for 20+ Languages

    LanguageTool is an Open Source language/grammar checker. *** THIS REPOSITORY IS OUT OF DATE, see https://github.com/languagetool-org INSTEAD ***
    Downloads: 0 This Week
    Last Update:
    See Project
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