The Joomla! Extensions Directory ™


K2 Popular ComponentModulePlugin

The powerful awarded content extension for Joomla! with more than 1.2 million downloads so far (and counting!)


✔ WHAT IS K2?
========================
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.


✔ FEATURES
========================
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 (no section/category restrictions)
- commenting, integrated with Google's reCaptcha & Akismet
- tags
- 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
- ajax-based comments moderation
- Google AJAX Search integration
- Rest-like JSON/JSONP content output
- Native advanced SEF options (added in K2 v2.6.4+)

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


✔ AMAZING PERFORMANCE
========================
ImpactWrestling.com, NewsBomb.gr, Gorillaz.com, Groupama Transport, Harvard, the High Court of Australia, MTV Greece, Jaguar Greece are just some of the thousand "big sites" around the world, fully powered by K2.


✔ DEPENDENCIES & LICENSE
========================
To utilize the built-in video & 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.


✔ WHAT NEXT?
========================
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 to do things like run a news site or a blog. Drupal & Wordpress have certainly met their match now!

Visit the K2 website & community: http://getk2.org

Report Extension

 

Images

 

2014-03-24
Reviews: 2
I've recently implemented this nice plugin, works like a charm :) I'll rated Excellent!
2014-03-05
Reviews: 10
It does so much and it makes organizing a web site with a lot of articles really easy.

Set up is a bit of a pain, however, especially if you're importing a large number of articles. Every image has to be removed and replaced and that takes a lot of time. And then, if you change something in your layout, say decreasing the image sizes by 20px, you have to do it all over again: delete and replace.

If there was a way to get around that issue, this system would be perfect.
Owner's reply

Actually there is. For imported articles from Joomla!, you can use the IAKI plugin http://getk2.org/extend/extensions/616-iaki-import-as-k2-image (a featured K2 extension in getk2.org) which makes the first image of your content a K2 image. So in such a case, you really don't need to manually import your images as K2 images, this plugin does everything for you and it respects the image dimensions as set in your K2 categories. As for what happens when you need to change your K2 image settings inside category parameters, well, the answer is simple: K2 will keep the existing images and HTML resize them to the new dimensions. If these dimension changes are less than 50px upwards, then the effect on image quality is nearly unnoticeable. If you need to change the dimensions more, then simply swap your image settings to use the next bigger dimension. So, e.g. if you used the "Medium" dimension setting in your K2 Category listings, swap to "Large" and let K2 HTML resize them downwards. The result will be what you need.

2014-02-27
Reviews: 2
Well I have been using K2 for a few months on Joomla 2.5 and Joomla 3.2. And my conclusion is that it is well worth taking the time to learn K2. As it does a lot more than it appears to, once you get used to the interface. I have read a lot of negative reviews, which actually point to server configuration issues. I know this as I am a system admin. And have found miss-configured servers give the biggest problems. And not the product its self.
With a little bit of exploration the security that can be set is amazing. And it is easy to set up a forum or blog with all the security needed to keep spammers out.
So take the time to explore this product as it is well worth it in the end. Keep up the good work.
2014-02-09
Reviews: 4
I was very excited about this component and I created a new website using K2 only to discover that nothing works as promised. Form an SEO perspective this componenet is a joke, with lots of duplicate URLs created by the search functionality and some modules displaying K2 items. This issue was first reported 2 years ago but no one really cares (google this phrase 'K2 SEO issue - Can it be fixed' for more details).
K2 also has big issues with the cache system. It generates a lot of cache files and you will quickly realize you need extra hosting space. For every image you upload, K2 generates an additional 4 or 5 cache images that take lots of space. Again, this issue is more than 3 years old and no fix or update.
I would strongly recommend against using K2 until these basic issues are fixed.
Owner's reply

K2 creating multiple sizes of an image is not a bug, it's a feature. Furthermore, K2's SEO is far better than more content components' is. Not only can you NOT have duplicate URLs by simply creating a hidden menu item pointing to all of K2 categories (this fixes duplicate URLs which would be normal to have depending on where you're browsing the site), we have also included an Advanced SEF section which can alter the URLs to your liking and even remove the item id creating URLs that only commercial SEF components can - and without the DB overload they bring.

K2, like all good things, needs some time and devotion to learn. If you can't see the benefits of it, then you might as well make a static website. I hear Jekyll is all the rage nowadays (good luck with that).

:)

2013-12-28
Reviews: 3
This extension is brilliant, and it shines even more the longer you work with it. The folks at the support forum is friendly and provides competent help.

The only real downside at the beginning is the documentation. It is something between real bad and simply non-existing. When you come to their document site the very first time you get the impression you hit the wrong link ;) - so hopefully the owner will take care a bit more about that in the future.

The CCK is built upon extra fields. You first define an extra field group and add the wanted fields and their types to it. After that, you assign this group to a category, and all content within this category will inherit the group. This concept helps organizing your additions to the standard Joomla content very efficient.

Unlike other CCKs like ZOO the extra field group is blocked within your content and added on the bottom, so your design capabilities are a bit limited.

The real benefit comes with the carefully integrated database support - you e.g. can easily fetch all articles from any single user, something I felt should be trivial however is found only within K2.

Joomla content, categories and users can be easily transferred to the K2 universe. Unfortunately, there is no integrated import/export tool for/to external data sources. The only import/export tool supporting K2 together with Joomla 3.x I found is Hexdata. It offers great possibilities like importing relations, however its current version has a bug and is not working with K2 at the moment.

K2 comes with its own tag system, that is a bit outdated now that Joola 3.x has arrived. Maybe this hopefully will be updated in the future.

K2 is rock solid and can be used on productive sites without worry. This makes it the first choice over SEBLOD, that appears to be in permanent early beta stage ;)
2013-12-18
Reviews: 3
k2 is by far the best component i ever used. for me it's a must-have for every single site, and function as the basis for all my article creation.

if you have some basic php skills you can use the k2 templating features which gives you endless possibilities for templating and designing your site's articles.

the only thing i don't like about k2 is it's front-end publishing / editing interface, which requires lots of work if you want it to look and feel good for a common user, not to mention RTL. but that's only applies for editing, the content templating itself is actually great on that matter.

recommended.
Owner's reply

The good news is that K2 v3.x will make frontend editing a lot better overall and definitely easier for users.

2013-12-17
Reviews: 1
Very easy to build product showcase site, is a very professional free extensions.
By the way, if K2_tools_module can create multiple template that is perfect as k2_content_module
2013-12-12
Reviews: 3
I have created, all my site content structure with this modue, with so many custom fields.
I suggest this to other users, it saves a lot of time, with your content structure.
2013-12-07
Reviews: 2
I’m using K2 to my Multilanguage Joomla 2.5 Website with 2000 articles. It’s working very nice and it has all the missing features that Joomla content doesn’t. I really like the tag system, the way it handles the categories especially the inherit parameter. The extra fields have limitless possibilities! The only con is that it gets a little bit slowly to load with some articles. K2 is probably the best open source CCK for Joomla and the best thing is that it is supported by many Templates and has lots of 3rd party plugins.
2013-11-30
Reviews: 6
I have been using K2 for a year now on one of my six Joomla sites and it has been an excellent addition. It gives so much more flexibility over the basic Joomla CMS. Once you get over the learning curve it's easy to use. I just get one category looking like I desire and then let new ones inherit the settings from it and voila the other categories look great too. Then I go back and tune it a bit for the custom look and feel. This works well with SH404SEF too. Nice work.
2013-11-22
Reviews: 6
K2 is not offering anything special that joomla 3 articles doesn't already have.

And not to mention how difficult is to move K2 items back to joomla articles.

They didn't put anthing new in K2 since... wait a minute, never?

K2 is the past, don't waste time with it, 2 years with K2 was enough. If you don't want to use joomla articles use any other extension but not this granny extension.
Owner's reply

This is K2. You either love it or hate it :)

In both cases there's a lot of passion hidden in the background. I'm not gonna go all Sigmund Freud here, but the fact that you don't bother to provide a few valid points as to why K2 doesn't work for you and you're just being vague, I can only guess that you're one of those people who demand features for K2, which are only to be applied by those few people asking them. Sorry if we didn't put one of the features you asked in K2 and that made you angry, but thankfully, most K2 users don't see it this way. Most K2 users understand what open source is. They know it takes time, effort and money to build. Lots of all three.

And to wrap it up: K2 is the only Joomla! extension supported by all professional template clubs and that speaks for itself.

2013-10-21
Reviews: 4
I write mainly due to a previous negative statement.

I am using K2 for several years and it is terrific component for Joomla.

Problems rarely occur if you use a good template, not just the "Most Beautiful" which have many holes, and they cause problems with K2, and it is not the fault of K2, and the most common template.

So I advise you to choose the templates, not only in terms of their wyglądau, but also in terms of the quality of the code.
2013-10-16
Reviews: 12
I have tried K2 several times over the years and never, I repeat, never had any luck with it. JoomlaXTC likes to use it in their templates, which are some of the most beautiful, but their continued use of your extension will drive me away.

K2 is so problematic that I am constantly looking for alternatives as you have to jump through hoops every time. very difficult to modify or even to get K2 to work correctly is a nightmare.

Their support is responsive, but very rarely do they offer a solution to fix problems. They constantly blame the template developer or some "other K2 extension" is causing the problem. From now on I will gut K2 and use the default Joomla Article creation system as K2 is nothing more than a major watse of time, money and resources.
Owner's reply

Couldn't agree more with you! It's really a matter of taste to take the ship to travel from the US to Europe instead of the airplane. Or take a horse to go to work instead of a car. I think you get my point.

2013-10-15
Reviews: 1
we build websites only with k2 component cause is the best component ever, we have done with eshops, deal websites, portal etc.

great work!

thanks for all joomlaworks!
2013-10-10
Reviews: 5
I'm shocked to see K2's JED rating is below 4. Please guys, take care while rating. Because, this one is star among the extensions in JED which is also FREE. Whenever I need to develop a custom module or plugin, I just go and refer their code. A very professional & clean component. I convey my sanctification and bless their fantastic development team.
2013-09-29
Reviews: 2
Thanke you for K2. I think it's just the extension that should be used in every website.
2013-09-23
Reviews: 2
This extension is working really well on our new website and doing all that it states.
2013-09-23
Reviews: 3
I have used K2 in quite alot of projects and i really love it. It is easy to configure, as also its templating system is excellent.

It will work for most of the cases, but i faced its limitations when i tried to built a quite complex content structure for one of my projects.

So i came up with ~20 content types (extra field groups), some of them with more than 40 or 50 extra fields.

This was a "disaster" since K2 become very slow for these content types (items) ... and now i am trying to find alternatives :( ....
Owner's reply

K2 is *THE* extension for pushing Joomla! to its limits. It's the very reason top Joomla! sites worldwide use K2.

K2 has richer content options compared to the default Joomla! article system and yet it's a lot faster compared it. Now, how did you manage to make a slow site out of K2 remains a mystery...

People some times confuse crappy hosts with Joomla's performance. I'm 100% certain that's the case we deal with here. And in this case, any CMS would perform slowly...

2013-08-11
Reviews: 7
Greate extension!
I really enjoying it :)

Thanks!
2013-08-07
Reviews: 6
First off, I like K2 as a Joomla extension. BUT, In my opinion, the trade-offs don't overcome the benefits. I'll admit I'm no high level developer or admin, but in my mind, K2 really doesn't add that much to Joomla. Back in the J! 1.X days, when you only had two layers of categories to work with K2 was a huge improvement. But these days, without that limitation in J! core, I don't see the big advantage to using it. Now, the disadvantage is that you lose the ability to integrate with a lot of extensions. By this, I mean that pretty much any extension will work with J! core articles, but they're hit or miss on whether they'll work with K2. So for me, the tradeoff isn't worth it. Other drawbacks include the performance hit you'll take by running another program within Joomla and the hassle of dealing with another stylesheet.
Page 1 of 13