New here?

Our Getting Started tutorial will get you up to speed with Hippo development.

Follow the Hippo Trail


The relations between repository, CMS and delivery tier.

How it all fits together

Developer Info

Source code, forge, license, roadmap and system requirements.

Developer Info


Interested? We're always on the lookout for new talent.

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What is Hippo CMS?

Hippo CMS is an open source Java CMS. We built it so you can easily integrate it into your existing architecture.

Open Platform

We are big believers in open source. We use and contribute to many open source components - and our entire core is available under the Apache License

Java Stack

What you'd expect from a Java environment: easy to integrate, testable, ready for continuous integration, and sticking to familiar Java standards such as JCR 2.0 and JAX-RS


Highly scalable platform which supports both clustering and replication


Performance matters to us! Hippo CMS  scales both  horizontally and vertically and makes use of  multi-layered caching to squeeze the most out of your implementation


Query content using REST, or import content from elsewhere into Hippo. Hook up an external application into the rendering phase via Spring. Build a Mobile app or an AngularJS app that consumes content from Hippo. Use external data systems to feed our personalisation engine


Protect your content with fine grained authorizations,  LDAP support and secure replication

The CMS Features You'd Expect

Content editing, workflow, history, version control, image library, user management, out of the box

Multi-lingual, Multi-site, Multi-channel

Out of the box support for multi-language, multi-site and multi-channel implementations. Cross-domain, cross-site, cross-language and cross-channel linking between documents are resolved automatically.

Separate Content from Presentation

Break free from page oriented development. Redesign your website without modifying content and reuse your content across websites, mobile  apps, etc. Use Hippo's  fully customizable document oriented model and built-in modelling tools to separate content from presentation.


Deploy on-premise or in the cloud on your preferred servlet container

Extensible Components

Use or extend existing components from the Hippo Feature Library or build your own. Use JSP, Freemarker or AngularJS to render your components

Give Control To End Users

End users can manage page configurations, menus, URL structures and component mappings. Without you having to go into code


Deliver personalized pages to visitors with the Relevance module


We don't mess with your HTML output. Use whatever web framework you like; Bootstrap, AngularJS, it's up to you


Out of the box querying, facetting and full text search capabilities based on Apache Lucene - or hook up Elasticsearch if you need more power


Can I try it out?

Yes! Try the online demo of  Hippo Enterprise Edition or create your own  project with Hippo Community Edition.

Look under the hood if you like, we share our source code.

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Did you see this?

Simplify Upgrades with Hippo's Synchronization Add-on
June 15, 2015

Use the Synchronization Add-on to smoothen the process of continuous delivery.

Meet Hippo CMS 10 for Developers
May 27, 2015

Last week, we announced the release of Hippo CMS 10. Now we want to take the time to truly introduce this new release.

org/hippoecm/hst/site/container/SpringComponentManager.xml]: Initialization of bean failed; nested exception is java.lang.NoSuchFieldError: NULL
by: | 25-08-16 04:45:57 (CEST)

Hi I am posting the same error for the third time, its quite urgent. I got this error and it does not let me initialize site container. Please help org/hippoecm/hst/site/container/SpringComponentManager.xml]: Initialization of bean failed; nested exception is java.lang.NoSuchFieldError: NULL

Re: [hippo-community] Building a Distribution
by: Christopher Dodunski | 25-08-16 02:39:37 (CEST)

Agree, accurate and descriptive diagrams are a highly effective means of revealing the architecture and inner workings of a system. Of course, supporting text is equally important. Generally, I find the Hippo documentation both extensive and detailed. Clearly a lot of effort has been put into

Re: Static assets 404 not found, despite being in correct location on file system
by: ldriver | 25-08-16 00:40:12 (CEST)

Here is an example of a link that gives 404: Some css files do load, and others do not, I have confirmed the files exist on the file system. On Wednesday, August 24, 2016 at 6:34:44 PM UTC-4, ldriver wrote: > > I have a

Static assets 404 not found, despite being in correct location on file system
by: ldriver | 25-08-16 00:34:44 (CEST)

I have a project deployed to Tomcat. On my page on the site, I'm getting 404 Not Found for some CSS and PNG files. I do see the files in the correct location on the file system, for example: /opt/hippo/<myproject>/bootstrap/webfiles/src/main/resources/site/images I have done mvn clean verify,

Hippo Rest Client
by: | 24-08-16 20:32:42 (CEST)

Hi We are working with Hippo 10.2 I followed following article: but the site container throws an exception and could not be loaded and gives 503 error and a log shows container not initialised error

Re: [hippo-community] a Spring Security - CustomUserDetailServiceImpl access to a resource bundle in hippoCMS
by: w.ko | 24-08-16 20:00:32 (CEST)

Hi Theresa, You don't need to get a JCR session to get hippo resource bundles. Please try this instead: private ResourceBundle getHstResourceBundle(String basename, Locale locale) { ResourceBundle bundle = null; ResourceBundleRegistry resourceBundleRegistry = HstServices.getComponentMana

Looking for assistance? You're welcome to ask for help. We have a very active mailing list! Please do check the tutorials and the guidelines first, though.