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.

  • Build Agents and Models on One Platform Icon
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  • 1
    telescope-cf-library

    telescope-cf-library

    TeleScope-CF XML Content Filtering Library

    Current TeleScope-CF Java library implementation employs XML parsing and specific pattern-matching that provides standard logical operator constructs to construct the query over the values of XML elements and attributes applied to the XML message on the fly as it is provided in the form of a String object. The code base has been adopted from TeleScope CQ XML stream broker code base written in C. C code has been re-factored into Java with minor modifications. This general-purpose library could be used by any Java applications that are involved in the XML message content filtering. Example application scenarios could be intrusion detection, selective rule engines, targeted database insertions during the ETL process and various business logic scenarios. The library could also be used in XML routers and various web services for XML content filtering where XML is a common message passing format.
    Downloads: 0 This Week
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  • 2
    Java library offering theory of sets/set theory functionality (complement, intersection, symetric difference, union, cartesian product and powerset). There's also an ant task/ant tasks included that provides the library's functionality
    Downloads: 0 This Week
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  • 3
    threadandjuc

    threadandjuc

    High performance three-high-import import system

    threadandjuc is a Java learning repository focused on multithreading, concurrency, and JUC concepts. It is designed to help developers understand how Java concurrent programming works through examples, explanations, and practical project-style demonstrations. The project covers topics such as threads, locks, synchronization, thread pools, concurrent collections, and high-performance data handling. It is especially useful for Java developers preparing for interviews or improving their understanding of production-level concurrency patterns. Some material also explores large-scale import and high-throughput reporting scenarios, connecting theory to real performance problems. Its main value is giving learners a structured way to study Java concurrency beyond isolated code snippets.
    Downloads: 0 This Week
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  • 4

    tiff4j

    Utility library for manipulating TIFF files in Java

    tiff4j is a Java library providing basic operations with TIFF files: * page count Preparing: * splitting * merging
    Downloads: 0 This Week
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  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

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  • 5
    tiny-spring

    tiny-spring

    A tiny IoC container refer to Spring

    tiny-spring is a compact educational reimplementation of core Spring Framework concepts for Java developers. It was built to make inversion of control and dependency injection easier to understand than by reading the full Spring codebase. The container supports singleton beans, bean initialization, property injection, and dependency injection between beans. Configuration can be loaded from XML files. The project also implements AspectJ-style AOP with support for interface-based and class-based proxies. Development is organized into milestone Git tags so learners can inspect the framework as features are added step by step. It is intended as a learning project and architectural study rather than a production replacement for Spring.
    Downloads: 0 This Week
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  • 6
    Tinybinding is a small framework that allows automated synchronization of values between objects including values of Swing Components.
    Downloads: 0 This Week
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  • 7
    A simple java package which provides an annotation, an interface and utility class for the purpose of making it easy to create toString() methods.
    Downloads: 0 This Week
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  • 8

    trifling

    API that contains collection of some miscellaneous useful classes

    API that contains collection of some miscellaneous useful classes
    Downloads: 0 This Week
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  • 9

    tthreads

    Terminative Java Threads

    tthreads is java library aimed at providing a clean and reliable method of terminating threads.
    Downloads: 0 This Week
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  • 10
    uCrop

    uCrop

    Image cropping library for Android

    We develop lots of different Android apps at Yalantis, and our experience shows that almost every application we deal with needs image cropping functionality. Image cropping can be used for various purposes, from ordinary adjustment of user profile images to more complex features that involve aspect ratio cropping and flexible image transformations. Since we want to provide all our customers with the best set of tools for image editing functionality, we decided to create uCrop, an image cropping library for Android. You might be wondering why we couldn’t just use one of the existing solutions for image cropping for Android. After all, you can find lots of them on Github and on the Android Arsenal. But here is the thing, none of these solutions could satisfy our requirements. Let’s take a quick look at the most popular open-source image cropping libraries and explain why they don’t quite fit the bill.
    Downloads: 0 This Week
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  • 11

    uealib

    Evolutionary algorithms library

    Фреймворк для работы с эволюционными алгоритмами, разрабатывается в Уральском государственном университете.
    Downloads: 0 This Week
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  • 12
    UGL is Java to OpenGL adapter library: designed to be used in scientific applications; works on wide range of host systems: Windows, Linux, Solaris, AIX, IRIX, HP-UX and Mac OS X; supports Java from 1.1.8 to 1.6
    Downloads: 0 This Week
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  • 13
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  • 14

    vfs dropbox plugin

    A dropbox plugin for apache commons vfs

    A dropbox plugin for apache commons vfs
    Downloads: 0 This Week
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  • 15

    visual-imposer

    Imposition for digital print. Multi-Pages on a sheet of paper

    This installation package is a digital typesetting software suitable for digital inkjet printing factories. The typesetting effect is 4 pages per printed sheet, and the binding methods are: lockstitch, wireless, and saddle stitching. The author of this software has been engaged in S&D for many years, aiming to provide more professional information solutions for factories. If you have any questions about IT, you can contact me through visualproc@hotmail.com.
    Downloads: 0 This Week
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  • 16

    völundr

    Java tools

    Various tools implemented with Java.
    Downloads: 0 This Week
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  • 17
    Web 2.0 toolbox and core framework
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  • 18
    warpFX is a data abstraction library for Flex™ offering transparent data services between Flex™ and any AMF3 compatible server supporting some defined remote methods. warpFX ships with a server-side remote methods and AMF3 implementation for Helma.
    Downloads: 0 This Week
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  • 19
    Collection of utility classes and tags for Web development using Java.
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  • 20

    webdavmx

    Message Exchange via WebDAV

    Client to client message exchange via a WebDAV server enables the creation of diverse web applications without installing server side software. Originally designed for the creation of tools which can be installed by users in content management systems and which are portable between servers from different vendors. Will eventually include "hello world" example applications but mainly this is a tool to help application designers.
    Downloads: 0 This Week
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  • 21
    weeOrg is a collection of java classes that can be used to analyze social networks and other social structures.
    Downloads: 0 This Week
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  • 22

    xmltes

    xml Template Engine System

    Xml Template Engine, Modular, Event-based System with bean scoped contexts. Javascript and Java Client-Server Model. Write dynamic websites with xml templates. Modular structure maps xml namespaces to javascript modules. JS modules, templates, css and files are stored server-side and rendered client-side with the program. Non-commercial license.
    Downloads: 0 This Week
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  • 23
    XML Schema tools and Maven plugins: WSDL Merger, XML Comparator (SAX & DOM), Namespace normalizer Note - the project has moved to github! https://github.com/rustyx/xsdutils
    Downloads: 0 This Week
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  • 24
    yaesc

    yaesc

    Yet Another Elasticsearch GUI Client

    Elasticsearch Desktop GUI client. An IDE to create and test your queries.
    Downloads: 0 This Week
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  • 25
    This is a YUI2 java api based on java2script java to javascript compiler. Almost full yui2 java api, and other javascript toolkits like raphaeljs, soundmanager2 java api also available..Please visit http://yui4java.sourceforge.net/ for more informatiion. IMPORTANT: This project was a great way of learning how to model YUI API in Java, now I'm focusing on a GWT version of YUI Java API At: http://code.google.com/p/yuigwt/
    Downloads: 0 This Week
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