Content Construction

The powerful award-winning content extension for Joomla with more than 3.5 million downloads (and counting)!


K2 provides an out-of-the box integrated solution featuring rich content forms for items (think of Joomla articles with additional fields for article images, videos, image galleries and attachments), nested-level categories, tags, comments, a system to extend the item base form with additional fields (similar to CCK for those acquainted with Drupal), a powerful plugin API to extend item, category and user forms, ACL, frontend editing, sub-templates & a lot more!

Using K2, you can transform your Joomla website to a news/magazine site with author blogs, product catalogs, work portfolio, knowledge base, download/document manager, directory listing, event listing & more, all this bundled under one package!

Give K2 a try & you'll instantly love it! It's easy to use and fun to develop websites with! If you need any help or want to contribute to the project, join us at the K2 community.


Since K2 is extensible with additional fields to its base item form, you can easily create category-specific content types, e.g. article, blog post, product page, directory listing.

K2 offers as standard:
- nested-level categories
- commenting, integrated with Google's reCaptcha & Akismet
- tags
- distinct item image (useful for articles/catalogs)
- image galleries
- videos
- attachments
- user pages (author blogs/user profiles)
- smart ACL for frontend editing
- unique plugin system to extend item, category & user forms
- AJAX based frontend editing & comments moderation
- Rest-like JSON/JSONP/RSS/Atom content output
- Native advanced SEF options
- Google Structured Data built-in
- Facebook OpenGraph & Twitter Cards support
- Built-in media manager
- 100% mobile-friendly backend user interface - a joy to edit your content on-the-go
- Total options control, with minimal hassle. Instead of configuring category options over and over, use K2's category option inheritance to allow one category to inherit all options of another category! Or create categories that act as "configuration templates" for other categories (e.g. one set for news/blog posts, another for products, a third for events and so on) and assign them to groups of categories.
- The most advanced, yet easiest to use templating system (with multiple template override sets) to create any type of content you want - the true power of K2!

K2 fully supports the Joomla API, which means any Joomla plugins will function properly within the K2 component & modules, either in the frontend or backend.


Pixeden, Groupama, Harvard, High Court of Australia, Amnesty International, Arturia are just some of the thousands of top Joomla sites around the world, fully powered by K2.


To utilize the built-in media & gallery features you need to install AllVideos (free) & Simple Image Gallery Pro, both provided by JoomlaWorks.

K2 is developed by JoomlaWorks & licensed under the GNU/GPL license.


Try K2! Install it, hit the "import" button to bring your Joomla articles inside K2, start playing with the component to see the flexibility it provides first-hand. Moreover? You no longer need a dozen of components & even more modules/plugins to do things like run a news site or a blog.

Visit the K2 Community website:

Pros for me: auto-rendering of different sizes for article image, easy article-related integrations and good layout-workflows for developers
Ease of use
Pros for site-authors (my clients): every article-related content can be find within the article and intro and fulltext in different fields.
Have not needed the support yet, but the forum is very active and a lot of solutions can be found there...
The documentation could be better: one user manual with everything, but again: the forum ist very good!
I used this to: I used K2 for several websites with heavy manipulation of the K2-category-, modules- and items-layouts. Clients are happy, not to care about article image-size.

Great Support

Posted on 13 January 2020
Have used K2 for multiple Joomla websites and their related blogs.
Ease of use
Easy to install and setup - there is a lot more functionality out there will continue to learn more about the capabilities.
Great support - had an issue with a RSS feed and response guided me to the solution. A plugin casued the issue - turned it off and was set!
I used this to: For many Joomla websites, blogs and the occasional product pages implementation.
With K2 you can do anything in Joomla. The easy sub-templating featured, the extrafields and other features makes K2 flexible for any use.
Ease of use
With some few knowlegde of php and mysql K2 it's the easiest CCK on Joomla.
I used this to: A lot of things, products Catalog, News, Directory Search, E-shop
O K2 dá um banho de funcionalidades no próprio sistema do Joomla! Já uso K2 há 9 anos e sempre consigo criar soluções para meu site.
Ease of use
A interface do K2 é bem fácil e intuitiva. Perfeita para uso geral, mas são tantas opções que é possível se perder e se esquecer de algo.
O suporte do K2 é disparado o melhor de todos! O fórum é muito ativo e os desenvolvedores sempre ajudam com soluções personalizadas!
A documentação do K2 é bem completa, mas, novamente, tem que ler com atenção. Depois que aprende fica fácil.
I used this to: Uso para o meu site de filmes e consigo expandir as funções com várias extensões compatíveis. O site fica bem moderno, rápido e cheio de funcionalidades. Quem tiver curiosidade pode acessar o site Café com Filme para ver como fica o resultado.

Good to use

Posted on 03 December 2019
Very useful. I will give a score of 9. This module functions properly with the functions available.
Ease of use
I will give score 8. just a click away and everything you need can be done in single click.
Excellent support. I was even helped with video assistance. Thanks a lot, admin.
I will give 10 out of 10. The reason behind it is the module been well documented and easy to understand.
I used this to: Display my gallery and articles. I can organise my galleries and articles as I wish and easy to view and read. Apart from that, I like their voting function for the articles

Can't do without it!

Posted on 18 November 2019
I am using it since 2013 and works great. I have used it in websites of any scale and it never let me down.
Ease of use
Very easy, especially when using html overrides. You can make literally everything.
Great support! Almost immediate replies with a solution. Never had a problem solving anything.
Very good documentation and great community forum. It's worth spending some time learning the fundamentals.
I used this to: Everything, from 3-5 pages websites up to projects with thousands of articles

Good and versatile

Posted on 22 May 2019
Not everyone needs it, but people who need more fields to create new content will be great
Ease of use
Not hard to understand the environment, all mean, extremely easy to use, It takes a bit of work to set up
I used this to: Blog website, news sites, a custom online shop sites, CCK sites, education sites, etc..

K2 for blogs and news

Posted on 08 March 2019
Great Functionality but still must have a lot improvements
Ease of use
very easy to use !
not good enough
Not the best
I used this to: I use this when i need a blog where non experienced users want to post their articles

Weak CCK

Posted on 19 October 2018
No notification email in new comment or Fronted submit item
No builtin captcha
Ease of use
it's easy just in backend not frontend (still using popup)
Just for beginner
Owner's reply: Let's see...

a) No notification email in new comment or Fronted submit item
And for that K2 gets 10 out of 100? You clearly don't understand its advantages and what it brings to Joomla overall when it comes to serious content management.

b) No builtin captcha
You should look closer. It has reCaptcha, Akismet and StopForumSpam integration built in. It's the K2 settings if you're wondering.

c) it's easy just in backend not frontend (still using popup)
Is the popup a bad idea for some reason? The popup makes sure the template does not impose weird styling or cause JS conflicts from some 3d slideshow to an editing form. Plus it has room for other stuff like managing comments. You know, things neither Joomla nor other CCKs offer.

d) Documentation Just for beginner
You fall into contradictions here. If you're not a beginner as you suggest, how come you didn't see the options for reCaptcha, Akismet etc.?

All in all, I think you rushed in to give a bad/unfair (IMHO) review. Or you had a different objective from the start, as we know how much a 100% free K2 has cost other inferior yet commercial CCKs or wannabe CCKs.

For everyone else reading this, give K2 a serious try. Check its options, check the way it allows for template overrides with just a few files (not dozens as is the case with other CCKs or even com_content) or its parameter inheritance. K2 is a unified solution for content management in Joomla which is built with 3 goals in mind: performance, ease of use and developer/integrator flexibility. It's no wonder why the biggest Joomla sites worldwide run on K2.
We use this on all of our client sites as it provides a much more flexible content solution compared to the standard Joomla one
Ease of use
Very easy to use to get the basics sorted. To get a bit more technical with it requires a bit more time to work out but the support is great
Great support on the forum and via email. Even though it's a free component, the developers take time to respond to your requests and ideas.
There is extensive written tutorials and video on their website and external sites as well as a forum full of answers and gurus.
I used this to: All of our clients sites (over 100) which includes one site which is a news website so has hundreds of categories and thousands of articles which are added to each day. There is no other solution within Joomla that can compare to the flexibility that K2 offers
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Last updated:
Apr 29 2020
7 months ago
Date added:
Apr 14 2009
GPLv2 or later
Free download
c m p

Uses Joomla! Update System


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