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.

  • Loan management software that makes it easy. Icon
    Loan management software that makes it easy.

    Ideal for lending professionals who are looking for a feature rich loan management system

    Bryt Software is ideal for lending professionals who are looking for a feature rich loan management system that is intuitive and easy to use. We are 100% cloud-based, software as a service. We believe in providing our customers with fair and honest pricing. Our monthly fees are based on your number of users and we have a minimal implementation charge.
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  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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  • 1
    Awake SQL

    Awake SQL

    Remote JDBC access through HTTP

    Awake SQL is discontinued and replaced by AceQL. See http://www.aceql.com
    Downloads: 0 This Week
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  • 2
    Azzet is a generic asset loading java library. Assets can be loaded from multiple sources (filesystem, classpath, http, database, ftp) and in any supported format . The barebone library contains the default sources and no formats. By Magnos Software.
    Downloads: 0 This Week
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  • 3
    BIMserver

    BIMserver

    The open source BIMserver platform

    The Building Information Model server (short: BIMserver) enables you to store and manage the information of a construction (or other building related) project. Data is stored in the open data standard IFC. The BIMserver is not a fileserver, but it uses a model-driven architecture approach. This means that IFC data is stored as objects. You could see BIMserver as an IFC database, with special extra features like model checking, versioning, project structures, merging, etc. The main advantage of this approach is the ability to query, merge and filter the BIM model and generate IFC output (i.e. files) on the fly. Thanks to its multi-user support, multiple people can work on their own part of the dataset, while the complete dataset is updated on the fly. Other users can get notifications when the model (or a part of it) is updated.
    Downloads: 0 This Week
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  • 4
    Library of components and tools for business applications.
    Downloads: 0 This Week
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  • Premier Construction Software Icon
    Premier Construction Software

    Premier is a global leader in financial construction ERP software.

    Rated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
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  • 5
    A librairie devoted to backtrackable data structures
    Downloads: 0 This Week
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  • 6
    The BalanceLine4j Project is an implementation of the Balance Line Algorithm for Java applications. The Balance Line is an algorithm used to make Coordinated Processing and Sequential Updates, that improves performance and saves machine resources.
    Downloads: 0 This Week
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  • 7
    This is an open source project for reading and writing transaction files (clearing of payments, transactions, electronic invoices etc) associated with the Swedish banking association Bankgirot.
    Downloads: 0 This Week
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  • 8
    Annotate your POJOs to create a fully-functional application, with table support, collection filters, and persistence hooks.
    Downloads: 0 This Week
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  • 9
    BasePopup

    BasePopup

    Create a universal and convenient PopupWindow popup library

    BasePopup is a popup library that encapsulates and improves the system PopupWindow. It is a basic library class with a very high degree of freedom and rich API. You can easily complete various popups under the framework of BasePopup. Switching between Release and Snapshot versions may cause Build to fail. At this time, you can clean the Project. QuickPopup adds new APIs and modifies the implementation of QuickPopupConfig to make the code cleaner and cleaner. In response to historical issues, we have unified the role of the root layout margin under match_parent and wrap_content this time. Now the role is consistent with the system and used as margin instead of offset.
    Downloads: 0 This Week
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  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
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  • 10
    Various utilities and classes, ranging from swing to mathematics, and more.
    Downloads: 0 This Week
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  • 11
    Bijoux is a small, extendable configuration language and interpreter for Java, implemented in XML. It can be incorporated in a Java application to provide more configuration options than are possible with fixed-semantic configuration schemes.
    Downloads: 0 This Week
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  • 12
    BlackBerry PDF Writer (BPW) is a simple Java library to generate simple PDF documents in RIM's BlackBerry devices released under the BSD license.
    Downloads: 0 This Week
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  • 13
    This project is a Java Tag Project that will help you to mask the data into view layer, with tags that we usually need, and usually have problem to find and/or use. Another goal is to make the webdesigner work easier, faster and finally better.
    Downloads: 0 This Week
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  • 14
    Crossplatform menstruation calender with dynamic pdf-report-generation via server-script. The calender is intended for the CLDC profile and MIDP1.0 - like mobile phones, PDA and is written in J2ME. The server allows dynamic upload and pdf-generation and
    Downloads: 0 This Week
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  • 15
    BlueCsv
    Blue Csv es una libreria para la lectura y escritura de archivos CSV para .NET y java. descargar dll o jar segun el caso. Es liviana, potente y bien documentada por lo tanto facil de implementar para cualquier otro lenguaje.
    Downloads: 0 This Week
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  • 16

    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: 0 This Week
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  • 17
    BottomDialogs

    BottomDialogs

    An Android library that shows a customizable Material-based bottom

    Android Library that shows a customizable Material-based bottom sheet.
    Downloads: 0 This Week
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  • 18
    BrAPI is a Java API for brazillian developers with a couple of utilities to use with date,money,conversors,validators and factories.
    Downloads: 0 This Week
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  • 19
    Bubble Navigation

    Bubble Navigation

    A light-weight library to easily make beautiful Navigation Bar

    A lightweight library to easily make beautiful Navigation Bars with a ton of customization options.
    Downloads: 0 This Week
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  • 20
    CHAP Links Library is a web based visualization library for displaying graphs, networks, and timelines. The tools are developed as Google Visualization Charts for Javascript and GWT. Links Library is part of CHAP, the Common Hybrid Agent Platform. This project has been moved to Github. Please visit http://almende.github.com/chap-links-library/
    Downloads: 0 This Week
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  • 21
    An open source Java library for interprocess communications.
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  • 22
    CMIS Input plugin for Pentaho

    CMIS Input plugin for Pentaho

    Allows querying Content Management Systems that use the CMIS.

    Imagine being able to extract from your Enterprise Content Management System, all the metadata of your documents using simple queries with a query language very close to the traditional SQL. Imagine using the information extracted for statistical purposes, for creating reports and, more generally, to analyse your document archives in a way unthinkable until now with the current tools available. All this is possible within the Pentaho Suite, the Open Source Business Intelligence platform, which is useful to the extraction and analysis of structured and semi-structured data. With this goal (the extraction and analysis of data) has been designed and developed the CMIS Input plugin for Pentaho Data Integration (Kettle) that allows querying Content Management Systems that use the CMIS interoperability standard. The data, once extracted, can be stored and analyzed and perhaps presented in customized reports be published in various formats for the end user (PDF, Excel, etc..).
    Downloads: 0 This Week
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  • 23
    CRH - Components are kind of an extension of the components of Java. They support own content types and mechanisms for defining behaviour in case of errors.
    Downloads: 0 This Week
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  • 24
    Caffeine

    Caffeine

    A high performance caching library for Java

    Caffeine is a high performance Java caching library providing a near optimal hit rate. A Cache is similar to ConcurrentMap, but not quite the same. The most fundamental difference is that a ConcurrentMap persists all elements that are added to it until they are explicitly removed. A Cache on the other hand is generally configured to evict entries automatically, in order to constrain its memory footprint. In some cases a LoadingCache or AsyncLoadingCache can be useful even if it doesn't evict entries, due to its automatic cache loading. To improve integration, JSR-107 JCache and Guava adapters are provided in extension modules. JSR-107 standardizes a Java 6 based API to minimize vendor specific code at the cost of features and performance. Guava's Cache is the predecessor library and the adapters provide a simple migration strategy. Automatic loading of entries into the cache, optionally asynchronously and size-based eviction when a maximum is exceeded based on frequency and recency.
    Downloads: 0 This Week
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  • 25
    Set of Java libraries to ease common development tasks in an application, such as working with resource files, input validation, background processing, observing property changes, etc.
    Downloads: 0 This Week
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