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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 1
    Apache Shiro

    Apache Shiro

    Apache Shiro

    Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. With Shiro’s easy-to-understand API, you can quickly and easily secure any application, from the smallest mobile applications to the largest web and enterprise applications.
    Downloads: 2 This Week
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  • 2
    BRVAH

    BRVAH

    Powerful and flexible RecyclerView Adapter

    BRVAH or Base RecyclerView Adapter Helper is a helpful tool for using RecyclerView more easily and efficiently. If you're an Android developer, you're probably familiar with RecyclerView as it is one of the most frequently-used controls in Android. While it may be quite useful however, a lot of developers can find it vexing to use. This is where BRVAH comes in. With BRVAH, it becomes easier than ever to use RecyclerView. Its efficient use meets the common needs of Android developers in projects. BRVAH optimizes adapter code, allows for adapter animation, adds On Item Click Lister, and more.
    Downloads: 2 This Week
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  • 3
    DroidParts

    DroidParts

    Carefully crafted Android framework

    DroidParts is a carefully crafted Android framework. RESTClient for GETting, PUTting, POSTing, DELETing & InputStream-getting, also speaks JSON. ImageFetcher to asynchronously attach images to ImageViews, with caching, cross-fade & transformation support.
    Downloads: 2 This Week
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  • 4
    Erupt Framework

    Erupt Framework

    Pure Java annotation, single class file, rapid development

    Pure Java annotation, single class file, rapid development of Admin management background. Does not generate any code, zero front-end code, zero CURD, automatic table creation, annotated API, custom service logic, supports all mainstream databases, supports custom pages, supports multiple data sources, provides more than 20 types of business components, more than a dozen It supports logical deletion, dynamic timing tasks, front-end and back-end separation, etc. Core technologies: Spring Boot, JPA, Reflect, TypeScript, NG-ZORRO, etc. Erupt is a low-code full-stack class framework that uses Java annotations to dynamically generate pages and background functions such as adding, deleting, modifying, checking, and permission control. Zero front-end code, zero CURD, automatic table creation, only one class file + simple annotation configuration, quickly develop enterprise-level Admin management background.
    Downloads: 2 This Week
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  • Veeam Data Platform v13.1 - Get Your Free Trial Icon
    Veeam Data Platform v13.1 - Get Your Free Trial

    Secure by design, portable by default. Recover clean, fast, anywhere. Start a free trial.

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  • 5
    HappyX

    HappyX

    Macro-oriented asynchronous web-framework written in Nim

    HappyX is a macro-oriented asynchronous web framework written in Nim, facilitating the development of web applications with a focus on performance and ease of use.
    Downloads: 2 This Week
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  • 6
    PowerMock

    PowerMock

    Java framework that allows you to unit test code normally

    Writing unit tests can be hard and sometimes good design has to be sacrificed for the sole purpose of testability. Often testability corresponds to good design, but this is not always the case. For example final classes and methods cannot be used, private methods sometimes need to be protected or unnecessarily moved to a collaborator, static methods should be avoided completely and so on simply because of the limitations of existing frameworks. PowerMock is a framework that extends other mock libraries such as EasyMock with more powerful capabilities. PowerMock uses a custom classloader and bytecode manipulation to enable mocking of static methods, constructors, final classes and methods, private methods, removal of static initializers and more. By using a custom classloader no changes need to be done to the IDE or continuous integration servers which simplifies adoption. Developers familiar with the supported mock frameworks will find PowerMock easy to use.
    Downloads: 2 This Week
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  • 7
    Seata

    Seata

    An easy-to-use, high-performance distributed transaction solution

    Seata, or Simple Extensible Autonomous Transaction Architecture is an open source distributed transaction solution that brings high performance and easy-to-use distributed transaction services under a microservices architecture. It has 3 basic components: a Transaction Coordinator for maintaining the status of global and branch transactions; a Transaction Manager that defines the scope of global transaction; and a Resource Manager that manages resources being worked on by branch transactions, and drives branch transaction commit or rollback. Seata has played a pivotal role of distributed consistency Middleware in Ali economy, and has provided strong support for businesses of all departments. It continues to be used and trusted by dozens of other companies.
    Downloads: 2 This Week
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  • 8
    Simple Binary Encoding (SBE)

    Simple Binary Encoding (SBE)

    Simple Binary Encoding (SBE) - High Performance Message Codec

    SBE is an OSI layer 6 presentation for encoding and decoding binary application messages for low-latency financial applications. This repository contains the reference implementations in Java, C++, Golang, C#, and Rust. More details on the design and usage of SBE can be found on the Wiki. An XSD for SBE specs can be found here. Please address questions about the specification to the SBE FIX community. For the latest version information and changes see the Change Log with downloads at Maven Central. The Java and C++ SBE implementations work very efficiently with the Aeron messaging system for low-latency and high-throughput communications. The Java SBE implementation has a dependency on Agrona for its buffer implementations.
    Downloads: 2 This Week
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  • 9
    Spring Data MongoDB

    Spring Data MongoDB

    Provide support to increase developer productivity in Java

    The primary goal of the Spring Data project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud-based data services. The Spring Data MongoDB project aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities. The Spring Data MongoDB project provides integration with the MongoDB document database. Key functional areas of Spring Data MongoDB are a POJO-centric model for interacting with a MongoDB Document and easily writing a repository-style data access layer. You do not need to build from source to use Spring Data. Binaries are available in repo.spring.io and accessible from Maven using the Maven configuration noted.
    Downloads: 2 This Week
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  • 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.
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  • 10
    Spring Data Neo4j

    Spring Data Neo4j

    Provide support to increase developer productivity in Java

    Spring Data Neo4j, part of the larger Spring Data family, provides easy configuration and access to Neo4j Graph Databases from Spring applications. It offers three different levels of abstraction to access the store. The Neo4j client, the Neo4j Template, and the Neo4j Repositories. Spring Data Neo4j offers advanced features to map annotated entity classes to the Neo4j Graph Database. The template programming model is equivalent to other Spring templates and builds the basis for interaction with the graph and is also used for the Spring Data repository support. Spring Data Neo4j is a core part of the Spring Data project which aims to provide convenient data access for NoSQL databases. Spring Data builds on Spring Framework, check the spring.io web-site for a wealth of reference documentation. If you are just starting out with Spring, try one of the guides.
    Downloads: 2 This Week
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  • 11
    Spring Data R2DBC

    Spring Data R2DBC

    Provide support to increase developer productivity in Java

    Provide support to increase developer productivity in Java when using Reactive Relational Database Connectivity. Uses familiar Spring concepts such as a DatabaseClient for core API usage and lightweight repository-style data access. The primary goal of the Spring Data project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud-based data services. Spring Data JDBC, part of the larger Spring Data family, makes it easy to implement JDBC-based repositories. This module deals with enhanced support for JDBC-based data access layers. It makes it easier to build Spring-powered applications that use data access technologies.It aims at being conceptually easy. In order to achieve this it does NOT offer caching, lazy loading, write-behind or many other features of JPA. This makes Spring Data JDBC a simple, limited, opinionated ORM.
    Downloads: 2 This Week
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  • 12
    Spring PetClinic Sample Application

    Spring PetClinic Sample Application

    A Spring Framework application based on JSP, Spring MVC

    A sample project to demonstrate the capabilities of the Spring Framework, commonly used in tutorials and learning.
    Downloads: 2 This Week
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  • 13
    Spring Security

    Spring Security

    Authentication and access-control framework

    Spring Security is a powerful and highly customizable authentication and access-control framework. It is the de-facto standard for securing Spring-based applications. Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Like all Spring projects, the real power of Spring Security is found in how easily it can be extended to meet custom requirements. Spring Security uses a Gradle-based build system. In the instructions, ./gradlew is invoked from the root of the source tree and serves as a cross-platform, self-contained bootstrap mechanism for the build. Be sure that your JAVA_HOME environment variable points to the jdk-11 folder extracted from the JDK download.
    Downloads: 2 This Week
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  • 14
    Toaster Frame

    Toaster Frame

    Android toast frame, dedicated to treating various difficult problems

    Toaster is a lightweight Android utility library that enhances and standardizes toast message behavior across different devices and OS versions. The project addresses inconsistencies in native Android toast implementations by providing a more reliable and customizable messaging experience. It focuses on ensuring that toast notifications display correctly even on heavily customized Android skins. The library is designed for easy integration, allowing developers to replace default toast usage with minimal code changes. It also supports styling and positioning improvements that make transient user feedback more predictable. In practice, Toaster is useful for Android teams that want consistent UI feedback without building a custom notification system from scratch.
    Downloads: 2 This Week
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  • 15
    Vespa

    Vespa

    The open big data serving engine

    Make AI-driven decisions using your data, in real-time. At any scale, with unbeatable performance. Vespa is a full-featured text search engine and supports both regular text search and fast approximate vector search (ANN). This makes it easy to create high-performing search applications at any scale, whether you want to use traditional techniques or a modern vector-based approach. You can even combine both approaches efficiently in the same query, something no other engine can do. Recommendation, personalization and targeting involves evaluating recommender models over content items to select the best ones. Vespa lets you build applications which does this online, typically combining fast vector search and filtering with evaluation of machine-learned models over the items. This makes it possible to make recommendations specifically for each user or situation, using completely up to date information.
    Downloads: 2 This Week
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  • 16
    OpenSwing
    OpenSwing is a components library that provides a rich set of advanced graphics components for developing desktop applications and HTTP/RMI based java applications/RIAs based on Swing front-end. It provides also adapters for Hibernate, JPA, iBatis, etc.
    Downloads: 9 This Week
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  • 17

    MDIFramework

    A ready-to-use architecture for Java MDI applications

    This project provides a ready to use architecture for Java MDI applications. This project is a copy of the http://java.net/projects/mdiframework/ on java.net (I own the two projects), because the old java.net hosting infrastructure will soon close. The original project exists since 2006.
    Downloads: 26 This Week
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  • 18
    JVx - Enterprise Application Framework

    JVx - Enterprise Application Framework

    Java Application Framework

    Develop professional database applications, highly performant with little source code. JVx is a full-stack application framework to create multi tier applications with Single Sourcing for different technologies (Swing, vaadin, react, ...). Nightly builds are available: https://dev.sibvisions.com/jvx.nightly/ Maven snapshots are available: https://oss.sonatype.org/content/repositories/snapshots Eclipse plugin is available: http://marketplace.eclipse.org/search/site/eplug
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    Downloads: 12 This Week
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  • 19
    Colorer Library
    Colorer provides source text syntax highlighting services. It colorizes source codes in editor systems (more than 200 syntaxes). Uses powerful HRC format(XML, RE, context free grammas), allowing to support any language. Available as Eclipse plugin.
    Downloads: 9 This Week
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  • 20
    GATE
    NOTE THAT THE SOURCE CODE AND ISSUE TRACKER HAVE NOW MOVED TO GITHUB. FIND US AT https://github.com/GateNLP/ GATE (General Architecture for Text Engineering) is an architecture, framework and development environment for developing, evaluating and embedding Human Language Technology. See http://gate.ac.uk for full details.
    Downloads: 8 This Week
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  • 21
    Singularity is a suite of RFID Middleware to support RFID enabled Supply Chain Management, integration to the enterprise, and EPCglobal. It includes edge services for device management, event filtering, workflow, as well as integration components.
    Downloads: 21 This Week
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  • 22
    A software toolkit for using the EPCglobal Low Level Reader Protocol (LLRP) to communicate with conforming RFID readers.
    Downloads: 22 This Week
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  • 23

    Kerner Utilities - Collections

    Commonly used utility classes (java.util.collection related)

    This project extends the standard Java collections framework by additional utility classes. These classes mainly focus on aspects of procedural programming, so its types and features should become mostly obsolete with Java8.
    Downloads: 37 This Week
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  • 24
    qcadoo MES

    qcadoo MES

    Web application for production management for SME

    qcadoo MES is an Internet application for production management targeted at small and medium companies. It’s available via the Internet browser and will help you to manage production on a daily basis. It combines the functions of large ERP systems, adapting it to the specific character of Small and Medium Companies. Your people will love it. We have moved posting new binary versions to GitHub! More info on: https://qcadoo.com/en/ Source code and binary versions: https://github.com/qcadoo/mes/
    Downloads: 20 This Week
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  • 25
    This project provides a middleware framework for the provision and operation of a Personal Smart Space (PSS). The PSS is a means for sharing services, and information, while automating certain actions and learning about the usage habits of the user.
    Downloads: 10 This Week
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