Browse free open source Java Frameworks and projects below. Use the toggles on the left to filter open source Java Frameworks by OS, license, language, programming language, and project status.

  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 1

    .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: 1 This Week
    Last Update:
    See Project
  • 2
    3RAD is a MDSD tool for generating 3-tier applications out of a custom data model specified in EMF Ecore. For building the generator openArchitectureWare is used. The produced target application will consist of a Swing front end and a EJB 3.0 server app.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3

    4WS Warp

    Development of extjs based rich web applications

    Warp is an open source framework that can be used to develop Java based applications, using Java and JEE5. It allows to develop Desktop Applications or 3 Tier Applications based on Swing extensions or Rich web applications based on ExtJS and JAX-RS (Restful web services). Business logic and data access tiers can be developed using JPA or JDBC and EJB 3 or any other Java based technology.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    A framework for creating CRUD based applications utilizing MDA, and a very pluggable architechure. eg: 2-tear / 3-tear. Web based / Rich Swing Client.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 5
    2 Java frameworks with transient and persistent object models based on nonstandard approach (less evident but faster development): an object is a set of named fields. 3 non-object libraries simplifying access to tables stored in RDB, text files, etc.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    AchitectHelper is an framework developed to make easy the development of simple 3-layered systems by providing generic layers for business and persistence. At this initial stage it helps IT students but its intented to help complex projects too.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    SweetDEV RIA is a complete set of Java/J2EE world-class Ajax tags. It helps you to design Rich GUI in a thin client.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Another Charts API

    Another Charts API

    API for the Another Charts exchange quotation analysis software

    GPL'ed API for the commercial, closed source Another Charts exchange quotation analysis software. http://anothercharts.net
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Aspose Maven for NetBeans

    Aspose Maven for NetBeans

    Creates a new NetBeans maven based project for Aspose APIs.

    This is another NetBeans IDE Plugin released by Aspose pty ltd, but for creating the Aspose Maven based projects in NetBeans IDE. Comes with "Aspose Maven Project Wizard" which let you create Aspose Maven based project by selecting Aspose Java APIs through the wizard steps and add the references of Aspose APIs Maven dependencies into the newly created Maven Project's pom.xml. Created Aspose maven based project will always contain the selected Aspose Java APIs latest version Maven dependencies from Aspose Cloud Maven Repository. The plugin supports the following formats: Microsoft Word (DOC, DOCX, ...) Microsoft Excel (XLS, XLSX, ...) Microsoft Power Point (PPT, PPTX, ...) ADOBE PDF Bar Codes Outlook Emails (MSG, ...) Imaging Microsoft Visio Drawings (VSD) Microsoft Project Management (MPP)
    Downloads: 1 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 10
    Aspose for Spring.Java

    Aspose for Spring.Java

    Aspose for Spring.Java provides Aspose API samples for Spring.Java.

    Aspose for Spring.Java provides usage samples / sourcecodes for the demonstration of Aspose API for Java by extending famous Spring Java PetClinic Sample Web Application. This extension of "Spring Java PetClinic Sample Web Application" also shows the Integration of Aspose APIs with Spring MVC, JSP and Maven Project. Latest Release: v1.1
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    AssemblerFramework是一个基于JAVAEE的框架。提供MVC、IOC容器、国际化、plugin机制等功能,框架自身采用松散结构,除了入口的Servlet,其他部件提供了可替换和扩展点。提供了注解和xml2种配置。
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    The asyncobjects framework is intendend for implementing event-driven network applications. It provides higher level API if compared with Java NIO. Initial code is based asyncobjects prototype from sebyla.sf.net project.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Bean2Bean
    Concise and fast Java library for object transformations: * Object mapper between classes, using annotations * Type converter for any class (or Type, even Generics) Supporting dynamic languages as OGNL or Groovy for custom expressions Maven dependency: <dependency> <groupId>net.sf.kfgodel</groupId> <artifactId>bean2bean</artifactId> <version>1.1.2</version> </dependency> Don't forget to add custom repository: <repository> <id>tenpines_repo</id> <name>Repositorio 10pines</name> <url>http://services.10pines.com:8081/artifactory/repo</url> </repository>
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    BugEye is an XML-based unit test creation framework. Being XML-based, it can be easily translated to almost any language. The current translations are C#, Java, JavaScript, and Visual Basic. Future translations include C++, Python, Perl, and PHP.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    IMPORTANT: This project is no longer maintained. All the effort is targeted on project Radargun: http://radargun.sourceforge.net
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    CafeSip - Look what Java and SIP can do

    CafeSip - Look what Java and SIP can do

    A suite of open-source tools and frameworks for creating SIP apps

    Session Initialtion Protocol (SIP) is widely used for telephone services over the Internet. CafeSip provides a suite of open-source tools and applications for creating customized SIP services and applications using the Java.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17

    Calimero

    A free Java KNX network library

    Calimero is a Java library for embedded/workstation-based KNX applications. The minimum JVM requirements are either Java ME/CDC 1.4 (Foundation Profile), or Java SE 8 (profile compact1). The library provides remote access and control, supporting KNXnet/IP, KNX IP, FT1.2, TP-UART, and KNX USB. Data exchange is supported on link layer using EMI 1/2 and cEMI, KNX data point types, application/management layer, as well as message buffering.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Calyxo encourages in MVC-Model2 Java web application development. It offers support for true modular applications, i18n, flexible view management, a powerful validation engine, and more. Calyxo's Struts plugins may replace Struts' Tiles and Validator.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    CHAMELEON is a declarative framework for tailoring adaptable Java applications for resource-constrained devices and can be used for tackling a form of adaptation to the execution context.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Component (library, framework) refactoring may affect existing applications, where the client code used previous component versions. Our tool preserves applications binary-compatible by generating an adaptation layer out of change history.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    Concutest is a collection of tools designed to make the development and testing of concurrent Java programs easier and more reliable. Concutest is available under the BSD License and under active development by the JavaPLT group at Rice University.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Crackleback is a Java servlet framework for back-office business systems. Its goal is to address 90% of a system's function points, to cut development costs by 90%, and to permit the business analyst--not the programmer--to build 90% of the system.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Cuckoo Resource Adapter for SAP

    Cuckoo Resource Adapter for SAP

    JCA compatible Resource Adapter for SAP

    Cuckoo is an open source Resource Adapter for SAP that is compatible to the Java Connector Architecture (JCA) version 1.5. It enables developers of Java EE applications to call functions in a SAP backend, making use of Java EE features like Container Managed Transactions and Security.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    DBOne
    A framework for java web development. To help developers to create their own java web application in a simple way without verbose configuration files. You can still use configuration files, only if you want it. The developer are the boss!
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Metaprogramming: proof of the concept.
    Downloads: 1 This Week
    Last Update:
    See Project