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e4 project repository (orion.client)
JavaScript HTML CSS

The goal of Orion is to build developer tooling that works in the browser, at web scale. The vision behind Orion is to move software development to the web as a web experience, by enabling open tool integration through HTTP and REST, JSON, OAuth, OpenID, and others. The idea is to exploit internet design principles throughout, instead of trying to bring existing desktop IDE concepts to the browser. See the Orion wiki for more information about Orion.


Orion source code is available in an Eclipse Git repository, and there is also a mirror on GitHub. For complete details on getting the source and getting setup to develop Orion, see the Orion wiki.

Bug reports are welcome in bugzilla.

Patches are welcome in Gerrit.

How to build Orion using Maven

Install Maven:

Install latest Maven 3.0 from

Clone Git repositories:

Clone org.eclipse.orion.client and org.eclipse.orion.server under the same local folder

% cd /my/git/repos
% git clone
% git clone

Run Maven build:

% cd org.eclipse.orion.server
% mvn clean install -P platform-kepler,local-build -DskipTests

Run the Orion server

% cd releng/org.eclipse.orion.server.repository/target/products/org.eclipse.orion/linux/gtk/x86_64/eclipse/
% ./orion

Now point your browser at http://localhost:8080 to start the Orion client


This repository contains the Orion client and Node-based server. This source code is available under the Eclipse Public License and Eclipse Distribution License.

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