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-commons

    Common classes for Java developers needed by most projects.

    The library currently contains these classes: Log - simplified logging. This class depends on java.util.logging class. SafeCollections - Multithread-safe collections include SafeMap, SafeQueue and SafeSet Settings - a class that manages single or multiple settings files.
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  • 2
    Json-rpc 2.0 implementation in Java. If you like it, please add review.
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  • 3
    java-pdf-table-extractor-lib

    java-pdf-table-extractor-lib

    Java Pdf Table extraction library

    The command line application is an example of usage of the Java library. The library is based on pdfbox library and works by looking for the layout of each selected pdf page, and looking for table structure patterns. After calling the library (passing the pdf filename, and the page range), the result is a List<PdfTextElement>. PdfTextElement is an interface that has two implementations. * A basic text (outside the tables) * And PdfTextTabulaElement, for table structures. That implementation allows reading table dimensions and the text of each cell of the table. It is only a beta version. If it does not work with the tables of your Pdf, you can write a ticket You will find more about it at this web site: https://www.frojasg1.com:8443/downloads_web/web/html/extractorDeTablasDePdfs.html?origin=sourceforge
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  • 4

    java-quant

    Quantitative financial models implemented in Java

    The project contains classes for implementation of binomial option pricing model and Newton method for finding roots of a function in Java. You can browse the source code and download the full distribution package.
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  • 5

    java-terminal-utilities

    Java terminal utilities

    Java/JNI interface to some terminal functions; allows to use non-canonical input, input timeout, echo-off mode, terminal colors in Java programs.
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  • 6

    javaLightConsole

    Easy fine console input/output for java

    Input : non blocking keyboard handling. Output : clean console, print at x,y coordinates, echo on/off, cursor on/off. Developed for learning game programming and MVC. Uses native code through JNI. Provides windows and linux versions. Includes code:blocks and eclipse projects for native and java code. You can use the classes InputProxy and OutpoutProxy in your projects. For usage examples, see their main() methods.
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  • 7
    Javaruntype is a library which offers a runtime objectual representation of the Java type system
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  • 8
    Typesafe representation of tuples in Java.
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  • 9

    javawebutils

    web application utilities

    This library contains utility classes such as a converter from plain text to HTML (for safe inclusion of user-supplied text into web pages, avoiding XSS attacks, etc.), converters from binary to hex representation, and similar functions
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  • 10
    Multipurpose java toolkit
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  • 11

    jcctalk

    java library for the cctalk protocol

    This project implements the cctalk protocol which is used for coin acceptors and others. Currently it has very basic functionality and most commands are not implemented. However, it is possible to recognise coin inputs (tested on EMP-800 coin acceptor over an emulated serial port). The library uses the RXTXcomm library for serial communication.
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  • 12

    jdbcpersistence

    JDBCPersistence is fast and simple ORM for java

    JDBCPersistence is an ORM framework that focuses on making programmer most effective by building on existing knowledge of SQL, JDBC APIs and avoiding unnecessary dependencies. It is very performant and easy to use.
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  • 13
    Jexpel is a library of compiling and execution of expressions for java whose the syntax is compatible with some of most popular expression languages.
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  • 14

    jfilter

    JFilter module will help you to filter response of Web Service

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  • 15
    Java library for operations with Iterables and other data structures in functional way.
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  • 16
    A neural networks framework for solving problems and processing data using neural networks of various descriptions.
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  • 17
    This project allows to read 3D Studio ".3DS" files. Support for other formats coming soon.
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  • 18
    Framework for manipulating Connections: The API mean purpose is provide a unified API through Adaptersto easily incorporate a third-party library into existing application. Also provide an efficient NIO based implementation supporting UDP and TLS
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  • 19
    How good is your software? jmove eases the understanding and valuation of the design and architecture of complex software written in java. It provides dependency analysis, metrics, design rule checking and impact analysis.
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  • 20

    jneutrino

    neutrino is a java library for the text editing

    Includes text components that extends swing's with undoable. MultiTextComponent - operates with group of the text components as one whole TextFinder - dialog for searching in text FontChooser, StyleChooser - dialogs for choosing font and styles. DocumentRestorer - dialog for restoring text from backup
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  • 21
    jni4net

    jni4net

    Fast, object oriented, intraprocess bridge between JVM and CLR

    Fast, object oriented, intraprocess bridge between JVM and CLR
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  • 22

    jnum

    Java numerical classes for astronomy and more...

    Imagine Numerical Recipes in the 21st century. Fast object-oriented Java code for numerical analysis, with a special focus on astronomical application (coordinate conversions, WCS projections etc.)
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  • 23
    Multithreaded java client of redis (A persistent key-value database with built-in net interface written in ANSI-C for Posix systems) See http://code.google.com/p/redis/
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  • 24
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  • 25

    jrmc

    Java Remote Method Call

    Java Remote Method Call provides a Framework for remote method invocation on Java objects which solves the limitations of Java RMI. It provides a way for bidirectional communication of object states, between Client and Server.
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