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
    Make java data object persistent in file system whithout database. Between serialization in file and database. Cache your data model in file. Manage more objects than memory can contains
    Downloads: 1 This Week
    Last Update:
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  • 2
    JACo MP3 Player ( java mp3 player )
    JACo MP3 Player is a cross platform java mp3 player. Features: very low CPU usage (~2%), incredible small library (~90KB), doesn't need JMF, easy to integrate in any application, easy to integrate in any web page (as applet).
    Downloads: 2 This Week
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  • 3

    ARSystem plugins for Pentaho Kettle

    AR-System step and db plugins for Pentaho Data Integration Kettle V5

    Allows you to write per API to AR-System Server (BMC Remedy Action Request System). Includes two step output, one step input and one database plugin. The step plugins need the database plugin.
    Downloads: 1 This Week
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  • 4
    The Amethyst Network Library is a Java-based network library developed specifically for the Java platform. This library can be used within any Java application to streamline and abstract the I/O of Java Sockets.
    Downloads: 1 This Week
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  • 5
    Aspose.Total Java for IntelliJ IDEA

    Aspose.Total Java for IntelliJ IDEA

    (formerly: Aspose for JetBrains)

    Aspose.Total Java for IntelliJ IDEA allows developers to create Aspose Java project through plugin provided Aspose Project Wizard. The wizard enables the developers to select and download the latest Aspose Java APIs and samples example codes.
    Downloads: 1 This Week
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  • 6

    Empact Foundation Class Library

    Cross-platform C++ library for use as a default application framework.

    A mature cross-platform C++ library for use as a default application framework. Features include: * Threading & synchronization * Socket programming: SSL, NanoMsg & ZMQ * File I/O utilities: zlib, ini, yaml * Native Database access: MySQL, SQLite, BerkleyDB, Postgre, REDIS and ODBC * Built-in mini XML parser; optional EXPAT, LIBXML and MSXML support * Network protocol stack: HTTP, FTP, SMTP, POP3, SOAP, XMLRPC * Scripting languages: Perl, Python, JavaScript, VBScript, Java, Lua, TCL, Squirrel * Cloud Computing: AWS * Encryption: OpenSSL * Platforms: Linux/Posix, Windows, Arduino * Over 500+ highly reusable classes. 4000+ fully documented functions. Follow the 'Wiki' link above to explore everything about the framework.
    Downloads: 1 This Week
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  • 7
    JGGJCalendar

    JGGJCalendar

    A fully customizable datepicker for your Swing application!

    JGGJCalendar is a free and open source Java Swing control. It provides an efficient and simple way to add a fully customizable calendar widget to your Swing applications. You can easily pick up a date and get the Date object, the corresponding formatted string representing the date, the formatting pattern and so on. JGGJCalendar is easy to set up in your code and provides a powerful interface with getter and setter methods. It's "locale sensitive" but you can change the Locale and the formatting rules before and after the initialization. JGGJCalendar supports the Gregorian calendar, the Imperial Japanese calendar and Thai Buddhist calendar. It was built to be fully customizable: you can easily change every color of the widget to match your application style and you can easily translate the interface (except for the Locale dependent data).
    Downloads: 1 This Week
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  • 8
    JUtilClasses

    JUtilClasses

    Java programmer's aid in useful methods and classes

    Util-Classes is a collection of Java classes for programming support in service for building applications. It covers a wide range of topics from simple small routines over Collection classes to larger utilities addressing IO-management, GUI topics and data safety.
    Downloads: 1 This Week
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  • 9
    Java Forker aims at providing a solution to the memory consumption of java Runtime.exec method under linux for really big vm like application servers. It is a small vm that will do the fork and communicate back the two outputs from the exec command.
    Downloads: 1 This Week
    Last Update:
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  • 10
    This project provides an interface to Java expression evaluator software. It does not itself provide expression capabilities but instead provides a common interface.
    Downloads: 1 This Week
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  • 11
    Calculates Natural Product(NP)-likeness of a molecule, i.e. the similarity of the molecule to the structure space covered by known natural products. NP-likeness is a useful criterion to screen compound libraries and to design new lead compounds. Maven dependancy: <dependency> <groupId>uk.ac.ebi.cheminformatics</groupId> <artifactId>NP-Likeness</artifactId> <version>2.1</version> </dependency> Required repository: <repositories> <repository> <id>ebi-repo</id> <name>EBI maven repository</name> <url>http://www.ebi.ac.uk/~maven/m2repo</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> Latest version of the project is available here in our GIT repo https://github.com/CS76/NP-Likeness
    Downloads: 1 This Week
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  • 12
    POJava is a simple, light-weight Java-based API for data processing and development. It includes an immutable DateTime object capable of parsing free-form dates in multiple languages and formats, and a variety of utilities for data transformation.
    Downloads: 1 This Week
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  • 13
    RRDiagram

    RRDiagram

    Generate railroad diagrams from code or BNF. Generate BNF from code

    RR Diagram allows to generate railroad diagrams (also called syntax diagrams) from code or from BNF notation. The output format is SVG which can be integrated to web pages and where rules can contain links. RR Diagram can also be used to generate BNF notation from a model.
    Downloads: 1 This Week
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  • 14

    SilverTunnel-NG

    Java library for easy accessing Tor network.

    SilverTunnel-NG is a Java library that implements and encapsulates all the complex network protocol stuff needed for anonymous communication over the Tor anonymity network. SilverTunnel-NG Netlib can be easily integrated in almost every existing and new Java application. The library requires Java 1.6/Java SE 6 or a newer version. This is a fork of silvertunnel (https://silvertunnel.org) Version (0.0.4) is deployed to maven. Since Version 0.0.4 SilverTunnel-NG also runs on Android. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: http://www.yourkit.com/ . Automatic Builds and Tests are done with DEV@CloudBees : https://silvertunnel-ng.ci.cloudbees.com/
    Downloads: 1 This Week
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  • 15

    SimulatorAlive

    Simulatoralive's Java libraries and programs

    This is the home of my current Java projects, including a few libraries and programs for various purposes.
    Downloads: 1 This Week
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  • 16
    Snippetory

    Snippetory

    Java templating solution with passive templates.

    Snippetory is a platform for java developers dealing with any text generation. The abstraction layer helps to keep the issues of the 'view' in the view, while all logic is implemented in java. Editing, debugging and testing, all with the tools one is already used to. The separation of template keeps the template simple, the logic compact, and easy to navigate, and offers completely new re-usage scenarios. Sourceforge code hosting is abandoned. Primary site is now https://gitlab.com/jproggy/Snippetory
    Downloads: 1 This Week
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  • 17
    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: 1 This Week
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  • 18

    Thimble

    An asynchronous task execution library for Java

    Thimble is a multi-thread Executor implementation that supports sequential and coalescing tasks. Sequential tasks are guaranteed to run in order, sequentially (but may run in different threads). Coalescing tasks are tasks where only the latest submitted task needs to be executed (effectively overwriting previously submitted tasks). Sequential and coalescing tasks are mutually exclusive.
    Downloads: 1 This Week
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  • 19
    Write XML
    Write XML is a Java library for writing well-formed XML.
    Downloads: 1 This Week
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  • 20
    bigfish

    bigfish

    Library for crossplattform communication

    bisfish is a crossplattform library that can be used with IPhone, Android and Windows Phone 7 projects. It enables you to easily share data between the three platforms. You run a server (programmed in java) to that all the clients will connect. The clients can choose a session to join with. A session can be password protected. In a session you can send messages (bytes) to all of the members of a session, to a group of members or to a single member (broadcast, multicast and unicast).
    Downloads: 1 This Week
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  • 21

    chalkbox

    Java project for using ANSI colors when writing some text

    Trying to tackle the domain from http://en.wikipedia.org/wiki/ANSI_escape_code
    Downloads: 1 This Week
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  • 22
    Powerfull DNS Server (fully customizable and *scriptable*) and pure Java DNS Protocol implementation
    Downloads: 1 This Week
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  • 23
    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: 1 This Week
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  • 24

    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: 1 This Week
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  • 25
    The QcTools4j project consists of an API for manipulating Quality Center software within Java.
    Downloads: 1 This Week
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