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
    Java Curses Library

    Java Curses Library

    JCurses, a java console windowing toolkit for Windows and Linux

    The Java Curses Library (JCurses) is a library for developing text terminal based applications using Java programming language. It is implemented as a Windowing toolkit similar to AWT, but built upon the UNIX "curses" windowing system.
    Downloads: 1 This Week
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  • 2
    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: 2 This Week
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  • 3
    threeten
    ThreeTen provides a modern date and time library for Java and is the reference implementation for JSR-310. It includes many of the lessons of the Joda-Time project and aims to standardise date and time concepts in computing. Code now integrated into OpenJDK, this project is archived.
    Downloads: 2 This Week
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  • 4
    PDFReporter

    PDFReporter

    Generating documents and reports, offline enabled and reliable.

    The library is a fork of the popular open source Jasper Reports and supports the common features provided by Jasper Reports, but offline and for mobile apps. The PDFReporter library supports iOS, Java and Android library. For your document and report design you use the PDFReporter Studio where you can visualize your data. If you want to use the library commercially please visit our official webpage.
    Downloads: 1 This Week
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  • 5
    openPDF
    openPDF is based on a several open source software products, such as iText, JPedal, CryptoApplet among others. Allow users to view/modify PDF documents and forms, barcodes generation, data extraction and signature validation.
    Downloads: 2 This Week
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  • 6

    JExec

    Incapsulate Java/oos features for easy usage from legacy or other lang

    Incapsulate Java/oos features for easy usage from other lang or OS (eg legacy, AS400). Java programmers can take advantage from many features offered by the language itself as from that created by the open source comunity; but integration with other languages may be painfull, expecially from OS/lang like AS400/RPG. JEsec want to be a collection of encapsultated java/oos features directly java-callable or proxied by JEsec tcp-ip service or by JEsec client caller. Example of java/OOS features not easily usable in legacy systems are: - working with PDF or Office file - calling webservices (eg. COGNOS report) - working with email - working with differents RDBS N.B. legacy/AS400 integration may be done via ILE features or via RUNJAVA/RUNQSH CL or, the simplest way, via RUNRMTCMD
    Downloads: 3 This Week
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  • 7
    JFling provides tools for (un)marshalling fixed length string data to and from java objects with typed properties. It's codegenerator uses plain csv files to generate fixed-length-string wrapper classes. (see our wiki 'Hosted Apps/Trac' for more info)
    Downloads: 3 This Week
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  • 8

    fxsvgimage

    This library allows to convert a SVG file to a JavaFX Node tree

    This library allows to convert a SVG file to a JavaFX Node tree or an Image. Note that contrary to other existing libraries, this library has no external dependencies (including Batik). The main development is here : https://github.com/hervegirod/fxsvgimage
    Downloads: 3 This Week
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  • 9
    Jarrunner is a java library to execute external java programs (jar) inside the running JVM (instead of forking a separate one). Additional features are an isolated mode to prevent class loading conflicts and the interception of all System#exit() calls.
    Downloads: 3 This Week
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  • 10

    Boss Engine

    8-bit Graphical API for Java

    Boss Engine is a graphical API for writing low-resolution 8-bit color applications. It offers easy to use functions for handling graphics, basic i/o and more. Screen access is performed through virtual framebuffers that allow direct read/write access to indexed color screen data. API is coded entirely with native libraries. No third party libraries required.
    Downloads: 2 This Week
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  • 11

    CobolToCsv

    Convert Cobol Data Files to/From Csv

    This project will convert Cobol Data Files to/From Csv files using a Cobol Copybook.
    Downloads: 2 This Week
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  • 12
    Commons-SSH is a thin bridge between different Java SSH implementations libraries. It doesn't contain any crypto-related code and created to be used by projects who doesn't want to care about export control regulations (let client to decide)
    Downloads: 2 This Week
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  • 13

    IWIR Tool

    IWIRtool creates, parses and manipulates IWIR workflows

    IWIRtool is Java-based implementation of an IWIR toolset for workflow system developers. IWIRtool is able to parse IWIR XML files and provides a Java Object representation enabling traversal and manipulation of the workflow. Additionally, it provides a simple Java API to enable the construc- tion of IWIR workflows and the serialisation of IWIR Workflows as XML documents compliant to the IWIR XML Schema. The tool is able to parse and evaluate the IWIR condition expressions and will validate IWIR documents for correctness in their control flow, data flow, data types and syntax both when parsing existing IWIR XML documents as well as during the creation of new workflows using the API of IWIRtool.
    Downloads: 2 This Week
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  • 14
    This is a Java Business Accounting API that consist of invoicing, general ledger, stock/inventory control and other business API that will assist java developer to build a business software with ease.
    Downloads: 2 This Week
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  • 15

    QuickWeb

    This tool can be used to create quickly the skeleton of a web site.

    QuickWeb is a tool to quickly create a skeleton of a web site. The tool developed in Java and to create a web site, there's no need to manipulate HTML in the beginning. All you have to do is to write a simple Java code that will generate a web site of several pages. Created to help me with documenting different Sourceforge project, QuickWeb does not generate, for now, any CSS or JS code, but, it can generate the skeleton and the static content of a website composed of several web pages and ensure the navigation between them. It can, also, be used to create empty project and empty pages to avoid the annoying default HTML code.
    Downloads: 2 This Week
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  • 16
    A small swing calendar bean for displaying monthly, weekly and daily items. The purpose of the bean is to provide an as flexible as possible reusable gui calendar component. The extensible toolbar provides view selection and navigation. Items can be edited in any of the views; status, start and & times and description can all be modified. The bean can be installed into most IDEs as it follows the JavaBean standard. See the wiki for instructions.
    Downloads: 2 This Week
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  • 17
    Voikko

    Voikko

    Library of linguistic tools

    Voikko is a spell checking, grammar checking, morphological analysis and hyphenation system. Spell checkers are available for multiple languages, other features for Finnish only.
    Downloads: 2 This Week
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  • 18
    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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  • 19

    clam4j

    A java wrapper for clamd

    Clam4j is designed to be a java wrapper around ClamAV. Clam4j allows you to scan for viruses in java programs by providing a simple java interface which sends the data to clamd for scanning. The results of the scan are returned to the caller via a response object.
    Downloads: 2 This Week
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  • 20
    Typesafe representation of tuples in Java.
    Downloads: 2 This Week
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  • 21
    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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  • 22
    The JAVE (Java Audio Video Encoder) library is Java wrapper on the ffmpeg project. Developers can take take advantage of JAVE to transcode audio and video files from a format to another (
    Downloads: 1 This Week
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  • 23

    Json Node Tree Library

    Represents JSON doc as a nodes tree for transforms like XPATH & XSLT.

    Json Node Tree framework is provisioning of transformation operations for JSON documents similar XML XPATH and XSLT. The framework parses textual JSON document to nodes tree that represents JSON entity: object, array or value of primitive type. Generated tree allows to modify values of nodes and/or structure of the given JSON document. Representation of JSON object as a nodes tree allows implement an operations such as path query and transformations (like XPATH and XSLT for XML).
    Downloads: 1 This Week
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  • 24
    NestProfessor Programmer Edition
    This is a SDK which can nest/layout the part/geometry/polygon on the material or sheet intelligently, you can get the best utilization of the materials, this SDK also support read/write DXF/DWG files and part-in-part nesting. New nesting lagorithm is implenmented, more good to support true shape part or material.
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    Downloads: 1 This Week
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  • 25

    NextBus Public Feed Adapter for Java

    A Java adapter for the NextBus Public XML Feed Service

    Restful Web Service adapter for the NextBus prediction and transit network reporting service. This implementation uses XSD Schema, JAXB and a domain object model to decouple the consuming application from the over-the-wire representation of the data. NextBus is currently providing real-time bus data in several major metro transit agencies including, but not limited to MBTA (Boston), Toronto, Seattle, Brooklyn, Staten Island as well as a number of University towns. In additional to the standalone Adapter, an Enterprise Service Bus pump and demonstration subscription client are available for those interested in Asynchronous integration of the transit feed.
    Downloads: 1 This Week
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