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

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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  • Endpoint Management with Remote Control Built In Icon
    Endpoint Management with Remote Control Built In

    Patch, monitor, and connect to Windows and macOS devices from one console

    Save 50% on your first year when you switch from your existing RMM to Splashtop AEM. Automate patching, track inventory, and jump directly into 1-click unattended remote sessions without switching tools.
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  • 1
    StrongKey CryptoEngine

    StrongKey CryptoEngine

    FIDO strong authentication, encryption, digital signature engine

    StrongKey CryptoEngine (SKCE) 2.0 is a "crypto Swiss Army knife" server to perform cryptographic functions through web services, while freeing application developers to focus on business functionality. Its modules include: - A FIDO Engine to support FIDO U2F key registrations/authentications - An encryption engine to encrypt/decrypt files using AES/TDES keys - Escrowing keys to on-premises key management system (StrongAuth KeyAppliance/SAKA) - Integration to cloud storage services (AWS S3, Azure and Eucalyptus Walrus) - A signing engine to digitally sign documents, code, etc. with FIPS 140-2 HSM support - An LDAP Engine for AD/LDAP integration for authorization decisions SKCE is battle-tested and in production at one of the largest e-commerce companies in the world, protecting more than 50M documents within the business process; see http://bit.ly/14VPYlO for the case study. Download StrongKey CryptoCabinet (SKCC) on this site to see how to use SKCE.
    Downloads: 1 This Week
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  • 2
    VR Ax Java Sources & Build Projects

    VR Ax Java Sources & Build Projects

    VR Adrix Java Works - Paged Lists - Action-Entity Model ...

    Adrix.NT Java Works :: Sources & Build Projects includes - Paged Lists of Object & Iterators Library for Java - Action / Entity Model for Java - VR Ax AWT Clock Java Component - VR Multi Dimensions Array Library - VR MDArray List Manager Library - VR Adjacency (List | Matrix) Direct Graph Lib - VRJMosaic cells sliding game with automatic resolver - VR RectsWorld Sample Applic - VR Free Chess 2D Applic also contains - Other Utils Libraries - Demo and Test Applications - NetBeans build projects - and more ... (*) note: the libraries folder to build and run applications must be located on the same volume of the java applications its path name must be: \AX.VincentRadio\Java\SharedLib have fun Adrix.NT adrixnt@hotmail.it
    Downloads: 1 This Week
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  • 3
    For Java developpers who need to request SOAP server... until SOAP is deprecated. This is a client Java API. It does not require neither perform any code generation. It fits within a single jar file. soap-dust is validated against real servers.
    Downloads: 1 This Week
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  • 4
    Aspose Maven for JetBrains

    Aspose Maven for JetBrains

    Create a new IntelliJ maven based project for Aspose APIs.

    Aspose Maven for JetBrains is another JetBrains Plugin released by Aspose pty ltd, for creating the Aspose Maven based projects. Aspose for JetBrains and Aspose Maven for JetBrains IDE plugins enables Java developers to work with various binary file formats. This plugin comes with Aspose Maven Project Wizard that creates Aspose Maven based project by selecting API(s) from Aspose Java product lines like Aspose.Cells for Java and Aspose.Words for Java etc. and add those selected Aspose Maven dependencies into new Maven Project pom.xml. The creating Maven project will always contain the selected APIs latest available version Maven dependencies from Aspose Cloud Maven Repository. The plugin supports the following formats: Microsoft Word (DOC, DOCX, ...) Microsoft Excel (XLS, XLSX, ...) Microsoft Power Point (PPT, PPTX, ...) ADOBE PDF Bar Codes Outlook Emails (MSG, ...) Imaging Microsoft Visio Drawings (VSD) Microsoft Project Management (MPP)
    Downloads: 2 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

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  • 5
    Gravity Simulator

    Gravity Simulator

    Multithreaded N-Point Gravity Simulation for PC and Android

    Create a sun, spin some asteroids around it, and watch them collide and form planets. An N-Point Gravity Simulator is a realistic simulation in which all points attract each other: even the smallest asteroid has its own gravitational field that can affect even a large sun far away from it. Can be reused as a library for making games. If used as library, license is GNU LGPLv3, otherwise it's GNU GPLv3.
    Downloads: 2 This Week
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  • 6
    Neural Libs

    Neural Libs

    Neural network library for developers

    This project includes the implementation of a neural network MLP, RBF, SOM and Hopfield networks in several popular programming languages. The project also includes examples of the use of neural networks as function approximation and time series prediction. Includes a special program makes it easy to test neural network based on training data and the optimization of the network.
    Downloads: 2 This Week
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  • 7
    Please use https://code.google.com/p/ganymed-ssh-2/ , as this current project is not getting the attention it should and therefore should be considered as 'parked'. Orion SSH for Java is a library which implements the SSH-2 protocol in pure Java. This is the new name, and home, for Trilead SSH (formerly Ganymed SSH2).
    Downloads: 2 This Week
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  • 8
    The OpenHMS Project
    OpenHMS brands a collection of projects and many subprojects developed by Health Market Science. This is a robust collection of development libraries, APIs, and tools oriented around data manipulation and professional software development.
    Downloads: 2 This Week
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  • 9
    ThunderGraph is another java charting library intended to draw 2D graphs. Additionally, it contains a package that presents a live component implementing zoomable, scrollable and 'hintable' graph. Written for JDK 1.1+, it may be used in MS IE applets.
    Downloads: 2 This Week
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  • Cut Data Warehouse Costs by 54% Icon
    Cut Data Warehouse Costs by 54%

    Easily migrate from Snowflake, Redshift, or Databricks with free tools.

    BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
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  • 10
    Beet adds user behavior and performance tracking to a Spring-based Java app. HTTP requests, method calls, and SQL statements are tracked and associated to user and session. includes XML, binary XML, and JDBC loggers. See http://beet.sourceforge.net.
    Downloads: 2 This Week
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  • 11

    jfugue2me

    The adaptation of JFugue library for J2ME

    It allows you to use JFugue-2.1 API to program music on MIDP 2.0, CLDC 1.1 compatible mobile devices. It's easy to use, like this code to play C-major scale: Player player = new Player(); player.play("C D E F G A B"); It's all based on JFugue-2.1 sources, so go to http://www.jfugue.org for more information.
    Downloads: 2 This Week
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  • 12

    json4java

    Very Compact Java Reader / Writer ( 12kb)

    I was i need of a json writer / parser which is - Compact. Libraries around there are way too big given the json spec and my usual need for a project. -Simply integrated as a simple jar. Dont want to force Maven dependency on projects. Could not find it so i wrote it. I dont claim its perfect , but should save some time for small / medium projecs. Json types are intuitively mapped to their Java counterparts : Map , List. I did not try all UTF16 encodings , but let me know i will fix it IF YOU GIVE ME A TEST CASE. ( input this , expect that ) Also floating point parsing for exponential notation can be slighly improved , does not bother on my projects. Android dev will like it to be as small as it can be i guess. Documentation in readme.txt
    Downloads: 2 This Week
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  • 13
    AndroidRate

    AndroidRate

    Library to help you promote your Android app

    AndroidRate is a library to help you promote your Android app by prompting users to rate the app after using it for a few days.
    Downloads: 1 This Week
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  • 14
    Dutch sentiment analysis engine

    Dutch sentiment analysis engine

    Een module om de sentiment van een stuk Nederlandse tekst to bepalen

    This application was developed by Incentro to satisfy requests by clients for a sentiment analyser for the Dutch language. It is currently in it's alpha stage and we expect to have a beta release by November 2012. If you would like to help with the development or testing of this product please contact us at +31[0]15 76 40 750 - of info {at} incentro.com. Deze applicatie is ontwikkeld door Incentro om te voldoen aan klantaanvragen voor een sentimentanalyse module voor de Nederlandse taal. Momenteel is de module in alpha versie beschikbaar en een beta versie wordt verwacht in november 2012. Als u ons wilt helpen bij het ontwikkelen of testen van deze module, neem dan contact op met Incentro via +31[0]15 76 40 750 - of info {at} incentro.com.
    Downloads: 1 This Week
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  • 15
    Japura is a Swing project. It is a collection of components and application framework. Contact me at cadu@japura.org for suggestions or feedbacks.
    Downloads: 1 This Week
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  • 16
    QuantComponents

    QuantComponents

    Free Java components for Quantitative Finance and Algorithmic Trading

    An open-source framework for financial time-series analysis and algorithmic trading, based on Java and OSGi, with an Eclipse front-end. * Highly modular: usable as plain java API, OSGi components, or integrated into Eclipse * Standalone or client-server architecture, depending on performance and reliability needs * Integrated with Interactive Brokers through IB Java API * Generic broker API, it can easily be extended to work with other brokers * It works with historical and/or realtime market data * Backtesting facility * Extensible SWT charting library
    Downloads: 1 This Week
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  • 17
    Laverca

    Laverca

    Mobile signature service client Java API

    Laverca is an open-source Java API for requesting signatures using mobile signature services. Mobile signature service (MSS) allows users to sign messages securely using mobile devices. For instance, Laverca API can be used for document signing or strong user authentication in a login system. Laverca implements the ETSI TS 102 204 SOAP interface for application providers (APs). It means that Laverca can communicate with ETSI 204 conforming MSS systems. Laverca supports synchronous and asynchronous signature requests. Status of an asynchronous signature request can be polled. In addition to the ETSI features, Laverca includes the FiCom 2.0 features specified in Finland.
    Downloads: 1 This Week
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  • 18

    AI Search Agent Framework

    Java Framework for Artificial Intelligence Search Agents algorithms

    Downloads: 1 This Week
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  • 19
    AutoDiscovery Library

    AutoDiscovery Library

    A tiny library to add auto discovery capability into your applications

    A tiny and simple 100% Java library (without any dependency) to easily enable your application to automatically discover the presence of other instances of itself running on the other computers connected to the same LAN network, without having to deal with protocols and network configurations. The protocol used by the library is peer-to-peer, so you don't need a central server. The API is simple, straightforward and there are examples and full documentation to learn it in minutes.
    Downloads: 1 This Week
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  • 20
    BrAPI is a Java API for brazillian developers with a couple of utilities to use with date,money,conversors,validators and factories.
    Downloads: 1 This Week
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  • 21

    CobolToCsv

    Convert Cobol Data Files to/From Csv

    This project will convert Cobol Data Files to/From Csv files using a Cobol Copybook.
    Downloads: 1 This Week
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  • 22

    Enumerations

    This project is no longer maintained.

    This project is no longer maintained. Instead use my Java util lib: http://sourceforge.net/projects/util-lib/
    Downloads: 1 This Week
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  • 23
    This Library provides a java API for firewall logs, connection tracking and rules management.
    Downloads: 1 This Week
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  • 24

    JChess

    The Java Chess Engine

    This library is an attempt to create a flexible chess engine using the Java programing language. The main diference than others chess engine's is that it is only a library, and it can be attached to any program, including a web application. If you are interested to contribute please contact me. Francisco Rafael Del Roio <francipvb@hotmail.com>.
    Downloads: 1 This Week
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  • 25

    JFontChooser

    a font chooser component for java.

    a font chooser component for java. provide selection for: 1. font (installed and un-installed) 2. font size 3. font style 4. text 5. text color CHECK OUT AND SUPPORT MY LATEST ANDROID PROJECTS IN HERE: https://play.google.com/store/apps/developer?id=Deepak+PK
    Downloads: 1 This Week
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