Open Source Web Frameworks in Java

High-velocity web framework for Java and Scala; stateless, hit-refresh workflow, Pekko/Akka-based async, RESTful by default, type-safe.

GWT is a development toolkit for building and optimizing complex browser-based applications. Its goal is to enable productive development of high-performance web applications without the developer having to be an expert in browser quirks, XMLHttpRequest, and JavaScript. It's open source, completely free, and used by thousands of developers around the world...

Server-side Java web framework for RIAs: component-based UI (Button, Table, Tree), events and data binding; Ajax on the client; works with Spring Boot, Jakarta EE, Quarkus.

Component-oriented Java web framework; pure Java and HTML; Swing-like component model, POJO models; Ajax, CDI/Spring/Guice, Jakarta EE.

Server-centric Java web framework: rich UI in Java (Ajax without JavaScript); XUL-style components, MVVM; integrates with JSF, Spring, Jakarta EE.

Java library for Ajax: browser JavaScript can call server-side Java as if local. DWR generates JavaScript from Java classes and marshals data between browser and server.

REST framework for Java: neutral API and reference implementation; resources, representations, connectors; client and server, Servlet/JVM deploy.

Apache implementation of JavaServer Faces (JSF) and Jakarta Faces; MVC web framework with component libraries (Tobago, Trinidad, Tomahawk, etc. ).

Layered Java application framework: dependency injection, MVC, data, security, cloud; Spring Boot for standalone and microservices.

MVC framework: flexible control layer with Servlets, JavaBeans, XML; Model 2 style; Jakarta EE.

Component-oriented Java web framework; object/method/property model, live reload, POJO pages and components; Jakarta EE.

Servlet-based framework for secure web apps; services-oriented; security, scheduling, XML form validation, XML-RPC; JSP and Velocity views.

MVC web framework on CDI; IoC with constructor injection; REST-ready; POJOs and testability.

Web Resource Optimizer for Java: merge and minify JS/CSS at runtime or build-time; JsHint, CssLint, Less, Sass, CoffeeScript, Closure/YUI/UglifyJs.

Full-stack Java framework for database applications; multi-tier architecture, single sourcing for RIA, HTML/Ajax, and desktop.

Ajax JSF framework for thin-client RIAs in pure Java; automatic Ajax and Ajax Push, rich components, no browser plugins.

Automatic frontend for Java: write domain classes and get a production-ready web app; JPA-based, LGPL, multi-platform.

Component-based Java AJAX framework: server-side W3C DOM, pure (X)HTML templates, optional Swing-inspired component system; dual-licensed (AGPLv3/commercial).

Open-source J2EE SSO infrastructure for centralized, platform-neutral user authentication; SAML2, LDAP/RDBMS, multi-server support.

Web publishing system with clean role separation; multiple templating engines (Velocity, FreeMarker, WebMacro), scripting (Python, BeanShell, JavaScript), modular and extensible.

MVC-style web framework: recursive XSLT for UI, Java layer for application data; strict separation of model/logic and view.

Java web framework: annotation-based, POJO, no XML; state-free, convention over configuration; JSP, Velocity, FreeMarker; REST-friendly.

Aranea is an open-source Java Hierarchical MVC web framework for building reusable web application components with POJOs and a JSP tag library.

AribaWeb is an open-source component-based framework for rich, AJAX-enabled applications with minimal code and no hand-coded JavaScript (Auto AJAX, Live Edit, X-Ray).

Open-source MVC framework for configurable, object-oriented form controllers on top of Spring, addressing common Spring MVC and J2EE web issues.

J2EE web framework with component- and page-oriented design, event-based model, form validation, Velocity/JSP/FreeMarker templating, and high performance.

Framework for object-oriented, event-driven web applications using a UI-toolkit paradigm instead of page-based flow.

Next-generation Echo: platform for rich web applications with component-oriented, event-driven API and Ajax-based rendering.

Open-source web framework: Java runtime with server-side JavaScript for fast scripting and serving of sites and applications.

Java framework for dynamic web apps with rich-client style programming; component-based, event-driven, built-in Ajax controls.

Query-centric MVC framework for data-driven web apps; JSP taglib, List engine (OQL/HQL), Forms, and MDD data model abstraction.

Full-stack action-based Java MVC framework; programmatic configuration (no XML/annotations), IoC, auth, DB, validation, Ajax.

Full-stack Java web framework (RIFE2 successor): engine, web continuations, multi-format templates, auth, query builders, persistence, scheduler.

DDD-oriented meta framework: POJO-based; automatic persistence, presentation (HTML/Ajax), logging, user management, sessions.

Web framework (JSF scope) on Spring; pure-HTML IKAT templating, request-scope IoC (RSAC); Hibernate, JSR-168, Cocoon, Sakai integrations.

Lightweight Java web framework: convention over configuration, zero config per page, ActionBeans, binding, validation, multi-event forms.

Open-source presentation framework for servlet-based webapps with DOM-based templating (e. g. XMLC), server-side UI components, and event-driven MVC.

MVC Model 2 web framework with modular applications, i18n, flexible view manager, and a validation engine.

Java web framework with controller-as-class design: request URLs map to controller methods; MVC with RPC-style mapping.

Java EE 5 content repository framework with EJB-based persistence, JSF toolkit, admin interfaces, and SQL-like query language.

Servlet-based framework for dynamic pages: XHTML templates with SAX, content injected via tags/IDs and callbacks; enforces separation of content and presentation.

Enterprise Java RAD framework: MVC web widgets on Tomcat/Struts, lightweight O/R persistence, rules engines, declarative configuration, and data security.

Extensible Java framework for J2EE web or standalone apps: business objects, DBMS/LDAP integration, auth, MVC, HTML layout and forms, admin GUI.

Web framework combining pull MVC with component-oriented GUI design; JavaBeans as components, template-agnostic view.

Full-stack Java web framework for rich applications; pure Java focus, minimal need for JavaScript, HTML, CSS, SQL, JSP, or JSF.

Minimalist Model 2 MVC framework for Java/J2EE; pluggable templating and transformation (JSP, Velocity, XSLT, etc. ).

Convention-over-configuration Java REST framework; MVC, JSR-311 style annotations, flexible view mapping, XML/JSON serialization.

Salmon Open Framework for Internet Applications: J2EE MVC, JSP and tag libraries, visual development, pre-built components for RAD.

Struts extensions for Java 5: JSR-175 annotations and Java 5 features to simplify the action/form model and improve productivity.

Ajax tag library for Java/J2EE: rich GUI in thin client; pluggable into JSP with Struts or JSF.

AWT toolkit implementation: run AWT/Swing apps in a web container, rendered as HTML/CSS/JavaScript; no code conversion; JXP templates.

Ajax RIA framework: build web apps with desktop-GUI style, event-driven; rich UI components, minimal browser complexity.

HTML/JSP and Java binding framework; integrate with Struts, JSF, YUI; binding config and backing beans, no custom tags.

Web framework that renders pages with Swing components; develop in Java and pure HTML, MVC; no JSP or custom tags required.

Swing-like component web framework; MVC, events, layout managers; AJAX, Drag & Drop, CSS styling; widgets for trees, tables, tabbed panes.

Event-driven framework for responsive rich Internet applications using Java and JSP, with no JavaScript required.

Web framework built around separation of concerns and component-based development using pipelines; each component specializes in one operation (Spring-based since 2. 2).

Minimalistic framework to expose Spring beans as HTTP controllers via one servlet and Spring extensible XML authoring.

RAD environment for web applications and services on the Java 2 platform and open standards.

Alternative to Struts-like frameworks; build web UIs without writing HTML.

Server-side component library with Swing-like design; LookAndFeels for HTML, JavaScript, WML; reuses Swing models (e. g. TableModel).

Junction: conventions-over-configuration MVC for JavaScript; syncs client/server and RDBMS; runs in browser or Rhino (Java); optionally Google Gears.

Open source J2EE application framework in Java using standard J2EE APIs; flexible and extensible for enterprise applications.

High-performance Java MVC web framework with dynamic reloading, type-based dependency injection, and pluggable resolvers and templating.