Eclipse for RCP and RAP Developers is a purpose-built Eclipse IDE bundle that packages every tool a Java developer needs to build Eclipse Rich Client Platform desktop applications and Eclipse Remote Application Platform web UIs — without having to assemble a toolchain from scratch.
What is Eclipse for RCP and RAP Developers?
Eclipse for RCP and RAP Developers is a curated Eclipse IDE distribution that ships pre-loaded with the Plug-in Development Environment (PDE), the RAP tooling, and a matching target platform so you can open the IDE and write an OSGi plugin or a browser-hosted RAP widget on day one. It is maintained by the Eclipse Foundation and released on the same quarterly train schedule as the other Eclipse packages.
If you have ever tried to bootstrap RCP development from a generic Eclipse installation, you know the pain: hunting for PDE features, resolving target platform dependencies, tracking down the right version of Tycho for your Maven build. This bundle eliminates that archaeology entirely. You get a coherent, version-matched stack — PDE, the RCP runtime, the RAP Designer, the OSGi bundle tooling, and the Plug-in Manifest editor — all wired together and ready for a real project.
What does Eclipse for RCP and RAP Developers do best?
The standout strength is its all-in-one coherence for plugin and feature development. The Plug-in Development Environment is deep: you get a visual manifest editor that surfaces OSGi headers in human-readable form, a dependency graph that lets you trace why a bundle is on the classpath, and a launch configuration that spins up a nested Eclipse instance so you can test your plugin against a live workbench without leaving your IDE.
RAP tooling deserves a mention of its own. The framework lets you write a single Java UI codebase and deploy it as either a desktop RCP application or a multi-user web application running inside a servlet container. That is a genuinely unusual capability — the closest analogy in other ecosystems is something like Vaadin, but with the full JFace/SWT programming model rather than a web-specific abstraction.
- PDE target platform editor — define exactly which Eclipse or OSGi bundles your product resolves against, version-pinned
- Feature and update-site tooling — build p2 repositories and installable features without a Tycho Maven build if you prefer the IDE-driven workflow
- RAP launcher — run your application as a web app locally on an embedded Jetty instance with a single click
- Plugin Spy (Alt+Shift+F1) — inspect the contributing plugin for any UI element at runtime, invaluable when debugging third-party extension points
- API tooling — enforces API restrictions and deprecation annotations at compile time across plugin boundaries
Is Eclipse for RCP and RAP Developers free?
Yes — it is free to download and use, licensed under the Eclipse Public License 2.0. There is no commercial tier, no seat license, and no feature gating. The Eclipse Foundation funds development through working-group memberships from companies like IBM, Red Hat, and SAP, so the end user pays nothing.
Who should use Eclipse for RCP and RAP Developers?
This package is squarely aimed at Java developers building Eclipse-based tooling or products. If your day job involves writing IDE plugins for Eclipse or VS Code's Eclipse-adjacent cousins, extending an existing RCP product (think JBoss Tools, IBM Rational, or Sirius-based modelling workbenches), or porting a Swing desktop app to a web-accessible RAP deployment, this is the IDE you want open. It is not the right choice for a front-end developer, a Python shop, or someone building a plain Spring Boot service — reach for the Eclipse IDE for Java Developers or IntelliJ IDEA instead.
I have spent weeks in this environment working on an OSGi-based tooling plugin, and the workflow is genuinely tight once you internalize PDE's mental model. Compared to setting up the same stack in IntelliJ IDEA Ultimate with its OSGi plugin, Eclipse PDE still wins on depth: the manifest editor, the extension-point schema designer, and the nested launch configuration have no real equivalent elsewhere.
What are the best Eclipse for RCP and RAP Developers alternatives?
For pure Eclipse plugin development, there is no functional alternative — PDE is the canonical toolchain and no other IDE replicates it. For RCP-adjacent desktop Java work, IntelliJ IDEA offers excellent Java tooling and some OSGi support via the OSGi plugin, but it lacks the PDE launch infrastructure. If your goal is RAP specifically and you are open to a different web-UI framework, Vaadin on IntelliJ is a credible alternative with a more modern JavaScript interop story. For general Java development with no plugin-authoring requirement, VS Code with the Extension Pack for Java is lighter and faster to boot.
How does Eclipse for RCP and RAP Developers compare to the standard Eclipse IDE for Java Developers?
The Eclipse IDE for Java Developers package omits PDE and the RAP tooling entirely. You get Java editing, Maven and Gradle integration, and Git — a capable general-purpose Java IDE. The RCP/RAP package layers everything in the Java Developers edition and adds the entire plugin-development stack on top. If you need PDE even occasionally, start with the RCP/RAP package; adding it later to a plain Java install means manually installing features and frequently chasing version mismatches.
