Here are answers to some frequently asked questions. Please also see the comprehensive documentation or contact the mailing list for more help.


How do you pronounce the name?

It's like "cooks-do", as in the sentence "Cooks do cooking for their living". Actually, it's the literal transcription of some German slang meaning "Look at that!". ;-)

Is qooxdoo freely available?

Yes. qooxdoo is Open Source, dual-licensed under LGPL/EPL, i.e. the "GNU Lesser General Public License (LGPL)" and the "Eclipse Public License (EPL)". As a recipient of qooxdoo, you may choose which license to receive the code under. More licensing info.

Who is behind this project?

qooxdoo was initiated and is maintained by 1&1, one of the world's leading web hosts. There is a team of full-time core developers as well as many committers and contributors.

Will it stay Open Source?

Yes. Always has, always will. It is a true Open Source project: standard OSS licensing, public code repositories, public bug tracking, contributor-friendly.

Never heard of it. Is it the "new kid on the block"?

No. It was registered as an Open Source project at SourceForge on January 2005, one month before the term "AJAX" was even coined. It is constantly being developed and improved, which makes it one of the most mature and innovative web application frameworks today.

Is it enterprise-ready?

Yes. Its solid programming model and tooling allows for creating large-scale applications. To get an idea, see some user-contributed examples (even if that's only the tip of an iceberg).

Where do I get support?

Use the general mailing list. Many active users as well as the core developers try to answer all your questions. There is no commercial support currently available, but there are several companies listening to the mailing list to offer qooxdoo-related contracting.

Is there a qooxdoo book?

While several books contain sections on qooxdoo or references to it, there is only one printed book which is specifically about qooxdoo. Unfortunately it's now outdated because it was written towards qooxdoo v1.4, at a time when only (what we call now) qx.Desktop existed: qooxdoo - Develop Rich Internet Applications (RIA) with qooxdoo. Therefore we recommend the qooxdoo manual instead with its approx. 400 pages. It's maintained by the core team and available for free: as an online HTML version and a PDF to download.


Which browsers are supported?

A qooxdoo application runs in all major web browsers. For a typical qx.Desktop application that means: with identical look & feel.

Does it come with a server?

No. If you already have an existing backend that serves HTTP (or HTTPS) requests, it's probably fine to continue using it. Optionally qooxdoo offers several RPC servers for an elegant client-server communication. BTW, during development of your client application the local file system often is sufficient, without the need to use a real server.

What languages and technologies do I need to know?

Not many. qooxdoo features regular object-oriented GUI programming without requiring knowledge of low-level web technologies. Even non-JavaScript programmers get easily familiar with qooxdoo's OO capabilities and its tool chain.

But it also depends on the app domain you choose: for higher-level qx.Desktop apps it typically is: No HTML, no CSS, no DOM. Just JavaScript. For lower-level apps such as qx.Mobile and particularly qx.Website it is also about directly leveraging HTML, CSS and the DOM.

Isn't it just another JavaScript library?

No. Well, it depends …

For creating qx.Desktop or qx.Mobile apps it is much more comprehensive than a typical JS library like jQuery. It's also not just a "library", but a "framework": it comes with a large set of high-quality widgets and features a powerful, platform-independent tool chain.

For creating rather DOM-oriented qx.Website solutions, though, it is also possible to leverage qooxdoo as a low-level library.

I'm familiar with jQuery. How does it compare?

As with other typical JS libraries, much of jQuery's features are a subset of the qooxdoo framework. To allow for a jQuery-like programming style, an API very similar to jQuery is provided.

Are visual GUI builders available?

There is no official GUI builder that comes with the framework. But there are some community-driven attempts to create such GUI builders.


Please get involved and participate. Check out How to contribute to qooxdoo!