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.

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  • 1
    CoreDD is an open source data dictionary library for defining and standardizing generic purpose applications. CoreDD is 100% pure Java and XML based. You can manage your software to enable continuous change and customization.
    Downloads: 0 This Week
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  • 2

    corn-converter

    Bidirectional java type converters (JSON, XML, ...)

    Corn Converter module contains bidirectional java type converters to different target types like JSON and XML. It's simple, flexible and powerful enough satisfy serialization, de-serialization requirements including complex bean types and collections.
    Downloads: 0 This Week
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  • 3

    corn-cps

    Java Classpath Scanner

    A Java classpath scanner for resources & classes
    Downloads: 0 This Week
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  • 4

    corn-exception

    Java Exception Handler & Catcher with i18n & events support

    Exception module offers helpers to simplify exception building and catching process in Java. i18n support for exception messages and event-driving exception processing capabilities are comes with the module.
    Downloads: 0 This Week
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  • 5
    cron4j is a scheduler for the Java platform which is very similar to the UNIX cron daemon. With cron4j you can launch, from within your Java applications, any task you need at the right time, according to some simple rules.
    Downloads: 0 This Week
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  • 6
    crypto-native

    crypto-native

    Java native access for pc/sc, pkcs11, openct based on JNA

    This is a java native wrapper, based on JNA of standard methods to access smart cards (pkcs11, pc/sc, openct, libusb). Goals of this projects are: * interoperability: it can work on any platform where JNA runs: Windows, Linux, Mac (and one day even Android) * modularity: you don't need to include pc/sc support if you only use pkcs11 * ease of integration: it depends only on few required libraries. * ease of use: it exposes a simple java interface (even if you can deal with the JNA classes directly)
    Downloads: 0 This Week
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  • 7
    cubiculus

    cubiculus

    Examples of usage of cubiculus.com rest API

    Project provide data object that could be used in API. There is also example of application that connect co API.
    Downloads: 0 This Week
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  • 8
    curjent
    Concurrent agents for Java. Create multithreaded active objects using standard Java interfaces and classes without explicit use of threads, synchronization, or other concurrency primitives.
    Downloads: 0 This Week
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  • 9

    date-parser

    Rule Interpreter for natural date descriptions

    Date Rule Interpreter for date descriptions like 'next sunday' and 'the day before christmas'
    Downloads: 0 This Week
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  • 10

    dbtrans

    Java library for transfering data from one table to another

    A very small java library (less than 20 classes) for transfering data from one table to another; in the same or different database within the same network location.
    Downloads: 0 This Week
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  • 11
    Des3Per it's an easy to use java library that performs access to personalized file formats. The library is an API that can access for read only to any file format. The developer makes your model of file schema and after, access it via API in java.
    Downloads: 0 This Week
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  • 12
    Java to C++ porting framework
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  • 13

    dirndl

    Displeasing Ivy repositories now dressed lovely

    If you are new to Apache Ivy and want to build your own repository, dirndl is the tool of choice. You will be able to build your custom repository with an easy to use Swing application and deploy it wherever you want. No more strange or outdated libraries from mysterious sources. Build your own repository. Use libraries from sources you trust. Gorgeous acronyms! Get dirndl now. You have the choice.
    Downloads: 0 This Week
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  • 14
    Powerfull DNS Server (fully customizable and *scriptable*) and pure Java DNS Protocol implementation
    Downloads: 0 This Week
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  • 15
    Application to create PDF document on the fly from any source file format(PRN,HTML,TEXT,CSV) with complete mailing system and reports module. It's made over following library Pdf - IText Web Server- Simple Frame work Database- H2
    Downloads: 0 This Week
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  • 16
    Project development was moved to GitHub: https://github.com/dom4j/dom4j dom4j is a simple and flexible open source library for working with XML, XPath and XSLT on the Java platform using the Java Collections Framework with full integration with DOM, SAX and JAXP.
    Downloads: 0 This Week
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  • 17
    dotNet4Java - .Net for Java

    dotNet4Java - .Net for Java

    The best Java library to work with .Net libraries and frameworks.

    The dotNet4Java is a .Net Runtime Library for Java which helps Java developers work with .Net framework and 3rd party libraries in Java with ease. It is designed to provide a way to interact with applications written in anyone of the .Net languages (such as C#, Visual Basic.Net, Delphi.Net, JScript.Net etc) from Java. Competitive Advantages: - dotNet4Java JAR can be easily added to artefacts repository like maven or ivy. - dotNet4Java is single jar file that can be very easily added to any type of Java project EJB, applet, desktop, console or service. - No extra dll is required when deployed. - Full access to .Net Framework Class Library. - Lightweight and easy to use. - There are tools to import and generate .Net Libraries into Java class files. dotNet4Java can do so much: - Access .Net Framework Class Library. - Access Third Party .Net Libraries. - Access Your .Net Libraries. - Can invoke members of a .Net types. - etc Latest Version: 1.0.1.0
    Downloads: 0 This Week
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  • 18

    dribble

    Adds a little bit to a Java 8 stream

    Some utilities for controlling concurrency and buffering when using the Java 8 stream API.
    Downloads: 0 This Week
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  • 19
    This set of projects provides shared tools and utility classes for others Java projects. The dutilities project is composed by sub-projects that provides more specific tools: dtools contains utility classes, dswing contains UI components...
    Downloads: 0 This Week
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  • 20

    eBook parser library

    Java library for parsing eBook structure

    eBook parser library - Java library, designed for parsing many formats of electronic books
    Downloads: 0 This Week
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  • 21
    eCxx

    eCxx

    A C++ library for AVR and NodeMCU

    NOTE: This project is marked with 'Status: Abandoned' on SourceForge because not enough time can be dedicated to this project. However it may still get sporadic commits to the repository. eCxx is a library for AVR and NodeMCU tailored for micro LED displays and lighting effects. eCxx is utilizing Makefile build system. Java and Python based applications/tools are also included to ease the development and debugging process using the host PC. On one side, eCxx supports the original megaAVR series (ATmega328P, ATmega1284P, ATmega2560, ATmega32U4, AT90USB1286, etc.) as well as the new megaAVR 0-Series (ATmega4808, ATmega4809, etc.). On the other side, while eCxx is primarily designed to work in NodeMCU, it should also support other ESP-12 based design as well as ESP-01 based design. The Makefile build system and some of the tools would only run on Linux. However, the library source code should be portable enough to be built using other build systems for AVR and NodeMC
    Downloads: 0 This Week
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  • 22
    ejSerial

    ejSerial

    Serial connection Java library

    Java library to send and receive data via Serial COM-Ports. This library is intended to provide an easy way to access the serial-port. Only a few lines of code are needed to Read or Write data via serial port. All Properties and Methods are inspired by the "SerialPort"-Class of the .NET Framework (System.IO.Ports.SerialPort) The benefit of this project is, that it needs only a few lines of code to implement, and a reduced CPU load. Static Methods are available to send/receive String values. For the complete JavaDoc: http://easymodbustcp.net/jserial/javadoc/index.html The library works with Windows 64Bit and Linux 64Bit and Linux 32 Bit ARM (Raspberry Pi)
    Downloads: 0 This Week
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  • 23
    exchange-core java

    exchange-core java

    Ultra-fast matching engine written in Java based on LMAX Disruptor

    Exchange-core is an open source market exchange core based on LMAX Disruptor, Eclipse Collections (ex. Goldman Sachs GS Collections), Real Logic Agrona, OpenHFT Chronicle-Wire, LZ4 Java, and Adaptive Radix Trees. HFT optimized. Priority is a limit-order-move operation mean latency (currently ~0.5µs). Cancel operation takes ~0.7µs, placing new order ~1.0µs. Pipelined multi-core processing (based on LMAX Disruptor): each CPU core is responsible for certain processing stage, user accounts shard, or symbol order books shard.
    Downloads: 0 This Week
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  • 24

    extendedValidation

    BeanValidation extension

    BeanValidation API extension to provide CDI compatible ConstraintValidatorFactory, easy way to set parameters on message constraint and easy API to add non properties file message sources, like DB, external modules, mainframe routines, etc.
    Downloads: 0 This Week
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  • 25
    flom

    flom

    Free Lock Manager

    FLoM is a free open source distributed lock manager that can be used to synchronize shell commands, scripts and custom developed software. When used in a shell environment, FLoM manages process synchronization in the same way that "nice" manages process prioritization. Shell commands, scripts and custom programs can be synchronized inside a single system or in a network of IP connected systems. FLoM supports different types of abstract resources: simple, numeric, set, hierarchical and transactional sequence. libflom, the library shipped with FLoM, allows you to develop your own application using a simple C, C++, Java, Perl, PHP or Python client API. SSL/TLS security for network communication, X.509 certificates for peer to peer mutual authentication.
    Downloads: 0 This Week
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