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.

  • Auth for GenAI | Auth0 Icon
    Auth for GenAI | Auth0

    Enable AI agents to securely access tools, workflows, and data with fine-grained control and just a few lines of code.

    Easily implement secure login experiences for AI Agents - from interactive chatbots to background workers with Auth0. Auth for GenAI is now available in Developer Preview
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  • MongoDB 8.0 on Atlas | Run anywhere Icon
    MongoDB 8.0 on Atlas | Run anywhere

    Now available in even more cloud regions across AWS, Azure, and Google Cloud.

    MongoDB 8.0 brings enhanced performance and flexibility to Atlas—with expanded availability across 125+ regions globally. Build modern apps anywhere your users are, with the power of a modern database behind you.
    Learn More
  • 1
    Importer library to import assets from different common 3D file formats such as Collada, Blend, Obj, X, 3DS, LWO, MD5, MD2, MD3, MDL, MS3D and a lot of other formats. The data is stored in an own in-memory data-format, which can be easily processed. www.open3mod.com/ is a 3D model viewer and exporter based on Assimp that is also Open Source.
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    Downloads: 43 This Week
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  • 2
    7-Zip-JBinding

    7-Zip-JBinding

    Java wrapper for 7z archiver engine

    Native (JNI) cross-platform library to extract (password protected, multi-part) 7z Zip Rar Tar Split Lzma Iso HFS GZip Cpio BZip2 Z Arj Chm Lhz Cab Nsis Deb Rpm Wim Udf archives and create 7z, Zip, Tar, GZip & BZip2 from Java.
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    Downloads: 55 This Week
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  • 3
    Delphi : VRCalc++ OOSL (Script) and more

    Delphi : VRCalc++ OOSL (Script) and more

    Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)

    Vincent Radio {Adrix.NT} Sources Library & Applications : Delphi C++ Java VRCalc++ C# VRCalc++ Object Oriented Scripting Language - Engine Source Pascal Code - Delphi Packages Build Prjs - VRCalc++ Scripted System Std RT Library - Guides & Docs (CHM, PDF, DOCX) - VCL & FMX (FireMonkey) Support - Script Test Code (Lang RTL VCL FMX) - Visual Stage Project : VCL & FMX Paged Lists & Iterators : Delphi C++ Java C# Multi-Dim Arrays & Direct Graph Classes : Delphi C++ Java VRCalc++ C# Delphi Drag&Drop Applications - VRCalc++ Script Executors: Terminal, VCL, FMX - VRMultiEdit - VRLazyCodeEditor - VR Astro Vision (Astrology) - Paged List Test - VRMosaic : Delphi C++Builder Java C# +with auto resolver - VR Free Chess 2D - VRBlocks - VRGraphStage - VR TTT OX + icons & bitmaps + VCL VisualStyles + Build Projects + instructions to build projects to build projects - Delphi : RAD Studio - C++ : Dev-C++ - java : NetBeans - C# : MS/VS adrixnt@hotmail.it
    Downloads: 5 This Week
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  • 4
    AL-IV

    AL-IV

    ALFOUR Programming language. Simple, safe, power, multi-platform.

    A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level.
    Downloads: 10 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 5
    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.
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    Downloads: 8 This Week
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  • 6
    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: 4 This Week
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  • 7

    .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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  • 8
    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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  • 9
    Coronis SDK

    Coronis SDK

    Set of module for data processing of wireless device

    The goal is to create a leading “Set of software libraries for data processing of wireless device based on Coronis platform“. These libraries will run on all major platforms (embedded and desktop) and provide services for data processing through generic APIs. Keywords: Coronis, Wavenis, API, Plugin, Wireless, Waveport, Wavecard, Profile, Java, C, C++, C#
    Downloads: 0 This Week
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  • Cloud SQL for MySQL, PostgreSQL, and SQL Server Icon
    Cloud SQL for MySQL, PostgreSQL, and SQL Server

    Focus on your application, and leave the database to us

    Fully managed, cost-effective relational database service for PostgreSQL, MySQL, and SQL Server. Try Enterprise Plus edition for a 99.99% availability SLA and category-leading performance.
    Try it for free
  • 10

    Empact Foundation Class Library

    Cross-platform C++ library for use as a default application framework.

    A mature cross-platform C++ library for use as a default application framework. Features include: * Threading & synchronization * Socket programming: SSL, NanoMsg & ZMQ * File I/O utilities: zlib, ini, yaml * Native Database access: MySQL, SQLite, BerkleyDB, Postgre, REDIS and ODBC * Built-in mini XML parser; optional EXPAT, LIBXML and MSXML support * Network protocol stack: HTTP, FTP, SMTP, POP3, SOAP, XMLRPC * Scripting languages: Perl, Python, JavaScript, VBScript, Java, Lua, TCL, Squirrel * Cloud Computing: AWS * Encryption: OpenSSL * Platforms: Linux/Posix, Windows, Arduino * Over 500+ highly reusable classes. 4000+ fully documented functions. Follow the 'Wiki' link above to explore everything about the framework.
    Downloads: 0 This Week
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  • 11

    Impressora Plugin

    Implementação de uso simples para impressoras não fiscais

    Com essa biblioteca você pode implementar de forma simples o uso de mini impressoras não fiscais das marcas mais usadas no mercado
    Downloads: 0 This Week
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  • 12
    JNativeLicense is a free license manager for Java.
    Downloads: 0 This Week
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  • 13
    Driver para impresor / controlador fiscal EPSON en JAVA. Utiliza JNI para comunicacion con puerto serie. Testeado en winxp, linux x86_64, win7 32 / 64 sobre TMU-220AF. solo rollo papel continuo (chicos)
    Downloads: 0 This Week
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  • 14
    LIEL (Language Independent Extension Library) is a language-agnostic library containing solutions to various programming problems and extending the capabilities of existing frameworks and code libraries.
    Downloads: 0 This Week
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  • 15
    Lightweight backpropagation neural network in C++. The project provides a class implementing a feedforward neural network, and a class for easily train it. It is highly customizable to manage your problem and comes with a simple graphical interface.
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    Downloads: 0 This Week
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  • 16

    Lnkdlst

    Single sided linked list (kind of lib with test-code, C, C++ and java)

    Use own (user) data section for each Linked-List-Element (LLEl) including a fix Identifier which is for search via basic Lnkdlst function (fast ID-part-search, e.g. to find all elements with a specific bit in the ID set). Main list-linkage-change functions: append, insert, delete. - Examples: use of flexible variable ArgList (OnePointerArg, optional valid if not NULL, Argument-Type by ID-Number is easy to get), key-value pairs, build FIFO{queue}/LIFO{stack}, auto-list with max. Element-Size and chronological order. Use malloc{slower-but-easy} or fix (static) memory. - OAList01: Object-Kind of a predefined pre-reserved List with X Elements (with constant user-data size), with secur modify functions and option to use locks (POSIX: mutex). Supporting a BusyList and a IdleList for easy build of e.g. a FIFO without need of much time for mem-allocation. - Release-Notes see uws-Lnkdlst-readme.txt in the tar.gz file(s) and in „Files“.
    Downloads: 0 This Week
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  • 17
    nn-utility is a neural network library for C++ and Java. Its aim is to simplify the tedious programming of neural networks, while allowing programmers to have maximum flexibility in terms of defining functions and network topology.
    Downloads: 0 This Week
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  • 18
    Numerikus is an attempt to build a set of numerical libraries written in C/C++, Fortran, Java and C# for single processor and multi-core processors. It wil have from basic functions to Linear Algebra solvers and ODE's and PDE's methods.
    Downloads: 0 This Week
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  • 19

    Optimized Storage for temporal Data

    open Optimized Storage of time series data

    Beta version. Base class for optimized storage of time series data. Uses any kind of relational database. Cross plateform with multiple languages (C++, C#, Java). Conditional storage based on value variation : DeltaValue and DeltaTime params. Get back data without losts.
    Downloads: 0 This Week
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  • 20
    Simple JNI (SJNI) is a neat wrapper for Java Native Interface. The aim of the project is to minimize hassle necessary to get going with JNI. Minimize number of lines of code written, while maximizing functionality and keeping your code error-proof.
    Downloads: 0 This Week
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  • 21
    A C++ API for making calls to java very simple. Imagine: "new java::lang::Object()".
    Downloads: 0 This Week
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  • 22

    Speedy Composer

    Speedy Composer – Artificial Neural Network Melody Composer.

    Thank you for your interest in Speedy Composer. Speedy Composer is an automated application for composing melodies for Speedy Net members. We recently made changes to the source code of Speedy Net, and converted it into the Python language and Django framework. Since Speedy Composer was originally written in PHP, it is not adapted to work with Speedy Net in its current form. So unfortunately we were forced to temporarily close the app Speedy Composer. But don't worry, we kept backups of all the tunes composed by Speedy Composer, and when the website is reopened we will upload them to the new site. Speedy Composer and Speedy Net are open source applications, free software. We are currently looking for volunteers to help us convert Speedy Composer to Python. If you are interested in volunteering, please contact me by email. Thank you and good luck, Uri Rodberg Founder and Director of Speedy Net and Speedy Composer, Speedy Paz Technologies Ltd. uri@speedy.net
    Downloads: 0 This Week
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  • 23
    Survey Developer Library 4 Java

    Survey Developer Library 4 Java

    Java framework with reusable patterns and classes

    A generic Java framework with reusable patterns and classes for enhanced development
    Downloads: 0 This Week
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  • 24

    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: 0 This Week
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  • 25
    C#/Java/C++ implementation of the Styx (9P2000) protocol for distributed systems. This protocol used by Inferno and Plan9 OSes.
    Downloads: 0 This Week
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