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
    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
    Last Update:
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  • 2
    HexLib GUI - Java Hex-Editor -Hex-Viewer
    Hex-Lib GUI takes the library HexLib into action, i.e. it is a working, fully functional Hex-Editor on base of HexLib. This project demonstrate the usage of the library for Java developers interested in the library in a practical approach.
    Downloads: 2 This Week
    Last Update:
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  • 3
    The goal: to provide implementations of as many algorithms (sorting, searching, ...) and data structures (lists, trees, ...) as possible, accompanied by discussion of big O run time and memory limits and references to sources of further study.
    Downloads: 0 This Week
    Last Update:
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  • 4

    AndLess

    This project provides libraries and tools for Android.

    This project provides libraries and tools for Android, starting with an endless list implementation and support for easy integration of Apache Solr data into an endless list. An additional library will be an Android forms library for easy and consistent form creation for business apps.
    Downloads: 0 This Week
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  • 5
    CouchDB4CF is a set of ColdFusion facade objects that encapsulate the easy to use CouchDB4J project written by Marcus R. Breese (http://github.com/mbreese/couchdb4j). This project's purpose is to simplify access to CouchDB databases.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    A graph persistence framework and associated toolkits based on a navigational query style. A default persistence engine is included for storing graph objects and properties into simple relational tables but the actual storage model is pluggable.
    Downloads: 0 This Week
    Last Update:
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  • 7
    HexLib - Java component for Hex-Editor
    A Java component which displays bytes in Hex- and ASCII-format. The component is designed as a standalone lib. A complete interface which provides the function of an HexEditor based on this lib exisits under the Fork of this project.
    Downloads: 0 This Week
    Last Update:
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  • 8
    An easy way for checking the precondition(s) of (public) methods and constructors (design by contract). All arguments can be checked, before an IllegalArgumentException is thrown. Creating consistent messages for inconveniences in argument values.
    Downloads: 0 This Week
    Last Update:
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  • 9

    Java DSA extensions

    Java datastructures and algorithms extensions

    DSA extensions contains classes similar in purpose to the classes provided in java.util. Currently, it contains sortable Lists and Maps, as well as a balanced binary search tree and a binary array search algorithm.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10
    A Java library for creation and editing of several playlist formats.
    Downloads: 0 This Week
    Last Update:
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  • 11
    API Java de visualisation et d'interaction dans le domaine des graphes.
    Downloads: 0 This Week
    Last Update:
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  • 12
    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
    Last Update:
    See Project
  • 13

    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
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    The QcTools4j project consists of an API for manipulating Quality Center software within Java.
    Downloads: 0 This Week
    Last Update:
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  • 15
    A base set of libraries. Boilerplate type code and algorithms. Currently skuttil (Java util & parsing code) and searKit (generic Java search framework).
    Downloads: 0 This Week
    Last Update:
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  • 16
    For Java developpers who need to request SOAP server... until SOAP is deprecated. This is a client Java API. It does not require neither perform any code generation. It fits within a single jar file. soap-dust is validated against real servers.
    Downloads: 0 This Week
    Last Update:
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