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
    Terrapin
    The Terrapin library provides a LOGO-esque Turtle drawing object in Processing.
    Downloads: 1 This Week
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  • 2
    ThunderGraph is another java charting library intended to draw 2D graphs. Additionally, it contains a package that presents a live component implementing zoomable, scrollable and 'hintable' graph. Written for JDK 1.1+, it may be used in MS IE applets.
    Downloads: 1 This Week
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  • 3

    ULS

    A lexical analyzer generator that makes the class source code.

    ULS is a class library for creating lexical analyzer from language specification file. It's provided as C/C++/C# and Java (class) libraries with a few of tools on Linux/Windows platform.
    Downloads: 1 This Week
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  • 4
    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: 1 This Week
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  • 5
    Application to create PDF document on the fly from any source file format(PRN,HTML,TEXT,CSV) with complete mailing system and reports module. It's made over following library Pdf - IText Web Server- Simple Frame work Database- H2
    Downloads: 1 This Week
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  • 6
    jFAN2 project develops a Java API to use a neural network (neuro-fuzzy) called FAN (Free Associative Neurons). Its an reprogramed version of jFAN "https://sourceforge.net/projects/jfan/".
    Downloads: 1 This Week
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  • 7

    jMDFLib

    This is a small Java library which reads MDF Files up to Version 3.00

    This Library for Java shall enable developers to use (at first read, maybe later writer) MDF Files, as described by the Format Specification MDF Format by Vector Informatics. The MDF file format is widely used in automotive engineering and other fields for the recording of measurement data. This Java library parses MDF files and enables different kind of read access. If this library is not helpful for a particular purpose it can at least be used to see how the parsing (and therefore how the file format itself) works.
    Downloads: 1 This Week
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  • 8
    yaesc

    yaesc

    Yet Another Elasticsearch GUI Client

    Elasticsearch Desktop GUI client. An IDE to create and test your queries.
    Downloads: 1 This Week
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  • 9

    .Net Native Interface Library

    The best library to work with .Net Assemblies in any programming lang.

    The .Net Native Interface Library (DotNetNativeInterface) is a native programming interface which provides a way for programming languages such as C, C++, Fortran, Assembly, Pascal, Java, VB etc to interact with applications and libraries written in any of the .Net languages (such as C#, VB.Net etc). Programmers can use DotNetNativeInterface native methods to access .Net 3rd party libraries or .Net Framework Libraries without the need for registry entries, COM registrations or changes to the .Net libraries. The following examples illustrate when you need to use DotNetNativeInterface native methods: 1. You want to access and use .Net Framework Class Library in your application. 2. You want to access and use 3rd party .Net Libraries in your application. Competitive Advantages: 1. Access to .Net Framework Class Library. 2. No COM registration of .Net Libraries is required when deployed. 3. Allows any programming language to consume .Net libraries as if they were native code.
    Downloads: 0 This Week
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  • 10
    30 Seconds of Java

    30 Seconds of Java

    Collection of reusable tested Java 21 compatible code snippets

    30 Seconds of Java is a curated collection of short, focused Java code snippets intended to teach small concepts quickly, similar to the popular “30 seconds of code” format in other languages. Each snippet is designed to be read and understood in under a minute, showing a single idea such as working with streams, handling optionals, manipulating collections, or doing common utility tasks. The repo targets both beginners who want bite-sized learning and experienced developers who just need a ready-made idiom without digging through docs. Because the snippets are standalone, you can copy them directly into your project or adapt them with minimal changes. The collection is organized and documented so you can browse by category and skill level. Overall, it’s a convenient library for learning modern, idiomatic Java fast and applying it right away.
    Downloads: 0 This Week
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  • 11
    3DzzD is an API to publish 3D on the Web using Java 1.1 technologie.
    Downloads: 0 This Week
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  • 12
    7-Zip-NBinding
    .NET wrapper for 7Zip, based on 7-Zip-JBinding, produced with IKVM. Extracts (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Udf archives. Archive creation/more formats coming soon.
    Downloads: 0 This Week
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  • 13

    A-JLib

    A simple java lib with Swing widgets and other stuff.

    A simple java library with Swing widgets and other stuff. This library tries to simplify the development of Swing applications ... which is sometime a nightmare ! It contains the classes I developed during the Yapbam project in order to deal with the problems I encountered. This work is still under progress and some things may be changed in the future (especially some class names). The classes available here are quite stable and used in the Yapbam project. AJlib is also available through Maven GroupId: com.fathzer ArtifactId: ajlib javadoc is at https://javadoc.io/doc/com.fathzer/ajlib
    Downloads: 0 This Week
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  • 14
    ADDC Server Commons Java Libraries

    ADDC Server Commons Java Libraries

    Java libraries for buiding IIOP and Web Services

    ADDC Server Commons supplies a set of java libraries published to maven central for writing Java servers offering both IIOP/SSLIOP and HTTP/HTTPS access using Spring Framewrok and JacORB. It also supplies a client for Monitoring CORBA Services, Balanced Groups and a full JNDI implementation for both CosNaming and Java.
    Downloads: 0 This Week
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  • 15
    AES Everywhere

    AES Everywhere

    Cross Language AES 256 Encryption Library

    AES Everywhere is Cross Language Encryption Library that provides the ability to encrypt and decrypt data using a single algorithm in different programming languages and on different platforms. This is an implementation of the AES algorithm, specifically CBC mode, with 256-bit key length and PKCS7 padding. It implements OpenSSL-compatible cryptography with randomly generated salt.
    Downloads: 0 This Week
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  • 16
    Utilities and Helper for JavaEE Developments
    Downloads: 0 This Week
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  • 17

    AI Search Agent Framework

    Java Framework for Artificial Intelligence Search Agents algorithms

    Downloads: 0 This Week
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  • 18
    ANDS PID Client
    ANDS PID Client is a generic Java client library for accessing the ANDS Persistent Identifier service and the Digital Object Identifier Service. Written by CSIRO Australia and funded by the ANDS Australian Research Data Commons Project .
    Downloads: 0 This Week
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  • 19
    ANNJ, Another Neural Network for Java is a neural network framework for the Java programming language. It is still in an early development stage, currently supporting only feed-forward type networks, but will soon be able to handle many other types.
    Downloads: 0 This Week
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  • 20
    ANSEL character set encoder/decoder for Java
    Downloads: 0 This Week
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  • 21

    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: 0 This Week
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  • 22
    Asti util projects. - event - exception handlers
    Downloads: 0 This Week
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  • 23
    AWS Secrets Manager JDBC Library

    AWS Secrets Manager JDBC Library

    The AWS Secrets Manager JDBC Library for Java developers

    The AWS Secrets Manager JDBC Library enables Java developers to easily connect to SQL databases using secrets stored in AWS Secrets Manager. We provide database drivers that intercept calls to real database drivers and swap out secret IDs for actual login credentials. This prevents hard-coding database credentials into your application code. This can be integrated into your app through a few configuration file changes. Change the jdbc url to one that our driver will intercept (starting with jdbc-secretsmanager), Change the c3p0 user to be the secret ID of the secret in secrets manager that has the username and password, and change the driverClass to be our driver wrapper. The secret being used should be in the JSON format we use for our rotation lambdas for RDS databases.
    Downloads: 0 This Week
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  • 24
    Absolute Baseline Complete Default Suite

    Absolute Baseline Complete Default Suite

    A NetBeans Module Suite project cluster for common branding functions.

    gts-abcdef is a NetBeans Module Suite project harness, useful for templating some NetBeans Platform module suite applications with a set of common branding and initialization infrastructure. Add this to your new module suite application project.
    Downloads: 0 This Week
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  • 25
    "Active Collections" is an API written by extending existing collection framework provided in JDK. This API will facilitate the consumer of a collection to handle events whenever the collection is modified.
    Downloads: 0 This Week
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