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Joomla (), also spelled Joomla! (with an exclamation mark) and sometimes abbreviated as J!, is a free and open-source content management system (CMS) for publishing
web content Web content is the text, visual or audio content that is made available online and user encountered as part of the online usage and experience on websites. It may include text, images, sounds and audio, online videos, among other items placed wi ...
on
website A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Examples of notable websites are Google, Facebook, Amazon, and Wi ...
s. Web content applications include
discussion forums An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are often longer than one line of text, and are at least temporar ...
, photo galleries,
e-Commerce E-commerce (electronic commerce) is the activity of electronically buying or selling of products on online services or over the Internet. E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain managem ...
and user communities and numerous other
web-based A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...
applications. Joomla is developed by a community of volunteers supported with the legal, organisational and financial resources of Open Source Matters, Inc. Joomla is written in
PHP PHP is a general-purpose scripting language geared toward web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by The PHP Group. ...
, uses
object-oriented programming Object-oriented programming (OOP) is a programming paradigm based on the concept of "objects", which can contain data and code. The data is in the form of fields (often known as attributes or ''properties''), and the code is in the form of ...
techniques and
software design pattern In software engineering, a software design pattern is a general, reusable solution to a commonly occurring problem within a given context in software design. It is not a finished design that can be transformed directly into source or machine co ...
s, and stores data in a
MySQL MySQL () is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, and "SQL", the acronym for Structured Query Language. A relational database ...
database.Jooml
Technical Requirements
/ref> It has a software dependency on the Symfony PHP framework. Joomla includes features such as page caching, RSS feeds, blogs, search, and support for language internationalisation. It is built on a model–view–controller
web application framework A web framework (WF) or web application framework (WAF) is a software framework that is designed to support the development of web applications including web services, web resources, and web APIs. Web frameworks provide a standard way to build an ...
that can be used independently of the CMS. Around 6,000 extensions are available from the Joomla website, and more are available from other sources. As of 2022, it was estimated to be the fifth most used CMS on the Internet, after
WordPress WordPress (WP or WordPress.org) is a free and open-source content management system (CMS) written in hypertext preprocessor language and paired with a MySQL or MariaDB database with supported HTTPS. Features include a plugin architecture ...
,
Shopify Shopify Inc. is a Canadian multinational e-commerce company headquartered in Ottawa, Ontario. Shopify is the name of its proprietary e-commerce platform for online stores and retail point-of-sale systems. The Shopify platform offers online ret ...
, Wix and
Squarespace Squarespace, Inc. is an American website building and hosting company which is based in New York City, USA. It provides software as a service for website building and hosting, and allows users to use pre-built website templates and drag-and-drop ...
.


Overview

Joomla has a
web template system A web template system in web publishing lets web designers and developers work with ''web templates'' to automatically generate custom web pages, such as the results from a search. This reuses static web page elements while defining dynamic e ...
using a
template processor A template processor (also known as a template engine or template parser) is software designed to combine templates with a data model to produce result documents. The language that the templates are written in is known as a template language ...
. Its architecture is a front controller, routing all requests for non-static URIs via
PHP PHP is a general-purpose scripting language geared toward web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by The PHP Group. ...
which parses the URI and identifies the target page. This allows support for more human-readable
permalink A permalink or permanent link is a URL that is intended to remain unchanged for many years into the future, yielding a hyperlink that is less susceptible to link rot. Permalinks are often rendered simply, that is, as clean URLs, to be easier to ...
s. The controller manages both the frontend, public-facing view, and a backend ( GUI-driven) administration interface. The administration interface (a) stores management and content information within a database, and (b) maintains a
configuration file In computing, configuration files (commonly known simply as config files) are files used to configure the parameters and initial settings for some computer programs. They are used for user applications, server processes and operating system ...
(, usually located in the file system root of the Joomla installation). The configuration file provides the connection between the server, database and file system and facilitates migrating the website from one server to another. The backend interface allows website operators to manage
users Ancient Egyptian roles * User (ancient Egyptian official), an ancient Egyptian nomarch (governor) of the Eighth Dynasty * Useramen, an ancient Egyptian vizier also called "User" Other uses * User (computing) A user is a person who ...
, menus, extensions and
web content Web content is the text, visual or audio content that is made available online and user encountered as part of the online usage and experience on websites. It may include text, images, sounds and audio, online videos, among other items placed wi ...
. Joomla is designed to be used by people who have basic
website A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Examples of notable websites are Google, Facebook, Amazon, and Wi ...
creation skills and requires an Apache–MySQL–PHP server like LAMP or WAMP. Commercially based
web hosting service A web hosting service is a type of Internet hosting service that hosts websites for clients, i.e. it offers the facilities required for them to create and maintain a site and makes it accessible on the World Wide Web. Companies providing web ...
s may include control panels for automatically installing Joomla for their customers. Joomla may be used to create localhosted-web applications that run on a range of AMP servers. Risk management, backup and recovery are the website operator's responsibility. Joomla does not have website backup or recovery facilities built into the core CMS; third party-written products (as installable extensions or in standalone products) exist. Other software facilities (whether as natively installable extensions utilising the Joomla framework or via "software bridges") extend a website's range of applications to include
discussion forums An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are often longer than one line of text, and are at least temporar ...
, photo galleries,
e-Commerce E-commerce (electronic commerce) is the activity of electronically buying or selling of products on online services or over the Internet. E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain managem ...
, user communities, and numerous other
web-based A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...
applications.


History


2005–2007

Joomla was the outcome of a
fork In cutlery or kitchenware, a fork (from la, furca 'pitchfork') is a utensil, now usually made of metal, whose long handle terminates in a head that branches into several narrow and often slightly curved tine (structural), tines with which one ...
of
Mambo Mambo most often refers to: * Mambo (music), a Cuban musical form *Mambo (dance), a dance corresponding to mambo music Mambo may also refer to: Music * Mambo section, a section in arrangements of some types of Afro-Caribbean music, particul ...
on 17 August 2005. At that time, the Mambo name was a trademark of Miro International Pvt. Ltd, who formed a
non-profit A nonprofit organization (NPO) or non-profit organisation, also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for a collective, public or social benefit, in co ...
foundation Foundation may refer to: * Foundation (nonprofit), a type of charitable organization ** Foundation (United States law), a type of charitable organization in the U.S. ** Private foundation, a charitable organization that, while serving a good cause ...
with the stated purpose of funding the project and protecting it from lawsuits. The Joomla development team claimed that many of the provisions of the foundation structure violated previous agreements made by the elected Mambo Steering Committee, lacked the necessary consultation with key stakeholders and included provisions that violated core open source values. Joomla's original co-founders, Andrew Eddie, Brian Teeman, Johan Janssens, Jean-Marie Simonet ''et al.'', established Open Source Matters, Inc. (OSM) to distribute information to the software community. Project leader Eddie wrote a letter that appeared on the announcements section of the public forum at mamboserver.com. Over one thousand people joined OpenSourceMatters.org within a day, most posting words of encouragement and support. Miro CEO Peter Lamont responded publicly to the development team in an article titled "The Mambo Open Source Controversy—20 Questions With Miro". This event created controversy within the
free software community The free software movement is a social movement with the goal of obtaining and guaranteeing certain freedoms for software users, namely the freedoms to run the software, to study the software, to modify the software, and to share copies of the s ...
about the definition of ''open source''. Forums of other open-source projects were active with postings about the actions of both sides. In the two weeks following Eddie's announcement, teams were reorganised and the community continued to grow.
Eben Moglen Eben Moglen (born 1959) is an American legal scholar who is professor of law and legal history at Columbia University, and is the founder, Director-Counsel and Chairman of Software Freedom Law Center. Professional biography Moglen started out as ...
and the Software Freedom Law Center (SFLC) assisted the Joomla core team beginning in August 2005, as indicated by Moglen's blog entry from that date and a related OSM announcement. The SFLC continues to provide legal guidance to the Joomla Project as one of OSM's partners. On 18 August Eddie called for community input to suggest a name for the project. The core team reserved the right for the final naming decision and chose a name not suggested by the community. On 22 September the new name, ''Joomla!,'' was announced. It is the anglicised spelling of the Swahili word , meaning "all together" or "as a whole" that also has a similar meaning in at least Amharic,
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
,
Turkic languages The Turkic languages are a language family of over 35 documented languages, spoken by the Turkic peoples of Eurasia from Eastern Europe and Southern Europe to Central Asia, East Asia, North Asia ( Siberia), and Western Asia. The Turkic l ...
and
Urdu Urdu (;"Urdu"
'' Google Summer of Code The Google Summer of Code, often abbreviated to GSoC, is an international annual program in which Google awards stipends to contributors who successfully complete a free and open-source software coding project during the summer. , the program is ...
projects and other activities; the intention of the new approach to team-building was also an effort to increase community participation in the development process instead of relying upon a small group of coders to do most of the work. According to
Google Trends Google Trends is a website by Google that analyzes the popularity of top web search query, search queries in Google Search across various regions and languages. The website uses graphs to compare the search volume of different queries over time. ...
, interest in Joomla peaked around the period 2009–2010. In January 2011—largely as the result of the collaboration between Eddie and Landry—a second major revision of Joomla was released: Joomla 1.6. Prior to the stable release of Joomla 1.6, Eddie relinquished his roles on OSM's board and project leadership; Louis Landry announced his retirement from the project the following year. Following Eddie's departure, in September 2011, OSM sought feedback from the community, including the possibility of constituting the governing body under a new name, to restructure the board's membership and project leadership.


Molajo

In 2010, with preparations for Joomla 1.6 nearly completed, Amy Stephen, Klas Berlic, Marco Barbosa, Matt Thomas ''et al.'' started a project to refactor the Joomla code. Code-named Molajo (an anagram of Joomla), the group felt that the existing Joomla CMS hindered end-users and developers adopting Joomla because (a) the Joomla CMS did not offer a range of packages containing a themed sets of web applications—like other CMS products had been doing for some time—and (b) the traditional MVC approach decreased developers' productivity in creating new components for Joomla. Community reaction to Molajo was mixed. Some commentators claimed that it was a fork of the Joomla CMS—a claim strongly rejected by Stephen—while others contended that its activities would undermine the future of the Joomla CMS. Against these headwinds, Molajo made its public debut at the J and Beyond conference in The Netherlands in 2011. Lacking support from OSM, an enthusiastic following from the Joomla community and unable to progress beyond pre-Alpha status, Molajo collapsed around the middle of 2015.


2012–2014

In January 2012 another major revision was announced: Joomla 2.5 (essentially bringing together the two previous minor releases in the preceding year). Joomla 2.5 brought much sought-after enhancements and a new API making it easier for novice users, additional multilanguage capability and the ability for users to update with "one-click". Shortly after the release of Joomla 2.5, work was under way on the Joomla 3.''x''. Joomla 3.''x'' was focused on mobile-friendly websites on the front-end, as well as a more intuitive back-end. With greater ease in site navigation and a more user-friendly means of editing Joomla site content, Joomla 3.''x'' became the most popular version of the CMS eventually making all previous versions obsolete. In March 2014, after seeking community feedback and a submission from the Production Leadership Team, a newly constituted OSM board approved changing the licensing for the framework from
GPLv2 The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the four freedoms to run, study, share, and modify the software. The license was the first copyleft for general us ...
to LGPL. Although the proposal only affected the licensing of the framework and not the CMS, the decision sparked a fierce debate within the community. In the end, the framework did not adopt LGPL and is still licensed under GPLv2. In August 2014, the Joomla CMS development team released a
plan A plan is typically any diagram or list of steps with details of timing and resources, used to achieve an objective to do something. It is commonly understood as a temporal set of intended actions through which one expects to achieve a goal. ...
for new version releases. Towards the end of 2014—three years after calling for feedback about ways to reorganise the project and with Joomla 3.''x'' into its fourth minor revision—the community discussed the leadership structure changes. Eddie, although no longer an active contributor to the project, argued that the code for Joomla 3.''x'' was "too fat and heavy to maintain with the current level of contribution"; he recommended mothballing the current CMS series and develop a less cumbersome Joomla 4. Eddie went further to criticise OSM's
vision Vision, Visions, or The Vision may refer to: Perception Optical perception * Visual perception, the sense of sight * Visual system, the physical mechanism of eyesight * Computer vision, a field dealing with how computers can be made to gain und ...
,
entrepreneurship Entrepreneurship is the creation or extraction of economic value. With this definition, entrepreneurship is viewed as change, generally entailing risk beyond what is normally encountered in starting a business, which may include other values t ...
and
management Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a Government agency, government body. It is the art and science of managing resources of the business. Management includ ...
of the project. Other commentators also expressed their opinion that OSM had become dysfunctional.


2015–2018

Criticism mounted about the plan for future development of the Joomla CMS. An opinion written in May 2015 by Nicholas Dionysopoulos (founder of Akeeba Ltd.) shared some of Eddie's earlier observations about OSM lacking vision, entrepreneurship and its ability to manage the project. Dionysopoulos disagreed with Eddie about the major cause of problems with Joomla 3.''x''; it was Dionysopoulos' view that the cause of most problems with Joomla 3.''x'' lay within "the processes of Joomla! the organisation". Dionysopoulos' views gathered momentum within the community and led to the formation of the Joomla 4 working group (which later became the Joomla X working group). In March 2017 the project announced the retirement of Joomla 3 and unveiled its plans to develop Joomla 4. This effectively brought an end to the work of the Joomla X working group (although it would be another two years before that Joomla X working group's activity was placed in "archived" status). In an effort to improve the relationship with the community the development team revised the 2014 plan and, in June 2018, produced a new roadmap with the expectation that Joomla 4.0 would be released in a stable form before the end of 2018. During the period 2017-2018 the developers created six alpha test releases for Joomla 4.


2019–2020

In January 2019 the developers released an updated plan revising previously announced estimated time frames; the roadmap was revised several times during 2020. Community concerns intensified about the handling the Joomla project—two years after announcing plans to retire Joomla 3 (but having already released two minor versions with plans for a third)—and by the end of 2019 a further six alpha test releases of Joomla 4 were produced for public discussion. On one hand some people questioned whether the community had lost its influence in driving the project while, from the developers' viewpoint, the other side defended the project by observing that things would be more productive if the community had been more actively engaged in testing, rather than criticising, the alpha releases. These discussions revealed a growing sense of division between developers on one side and end users on the other. A lengthy debate, started in March 2019 and initially focused on the aesthetics and usability of the Joomla 4 backend interface, highlighted an overall sense of disappointment with management and progress of the project. Although the debate was weighted heavily on criticising the backend aesthetics, people on all sides of the discussion aired their dissenting opinions about why the Joomla 4 project had become distracted by feature creep, software bloat, eventual
cost overrun A cost overrun, also known as a cost increase or budget overrun, involves unexpected incurred costs. When these costs are in excess of budgeted amounts due to a value engineering underestimation of the actual cost during budgeting, they are known ...
and lack of trust. Against a background of unrelenting criticism from within the community and declining popular interest in Joomla at the time a conference was held in January 2020 to develop a strategy for the future. The conference identified several key areas for further work but basically accepted the premise that faults related mainly to the project's organisational framework rather than the quality of the product. On 28 May 2020 the Joomla team disclosed that a data breach had occurred that potentially affected 2,700 users by exposing their personal details. The incident was discovered by an internal audit of the website that also highlighted the presence of superuser accounts owned by individuals outside OSM. Although no evidence was found of any unauthorised access to personal information, action was immediately taken to mitigate the risk including a requirement for all users to change their passwords.
COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identi ...
impacted Joomla planned events resulting in the cancellation of the main world-wide conferences; J and Beyond was arranged as a 24-hour
live stream Livestreaming is streaming media simultaneously recorded and broadcast in real-time over the internet. It is often referred to simply as streaming. Non-live media such as video-on-demand, vlogs, and YouTube videos are technically streamed, but n ...
event in May. In his welcoming address to J and Beyond OSM President Brian Mitchell acknowledged the impact of the global crisis on Joomla. Mitchell outlined his vision to meet the challenges confronting the Joomla project. The project needed to concentrate efforts, Mitchell said, to ensure that the three essential parts of the project—the code, community and culture—worked together as a whole.


Version history


Versions in use

The chart below shows the prevalence of the different versions of Joomla among all websites using Joomla in December 2022.


Templates

There are two types of templates used in the Joomla CMS: frontend templates and backend templates. The frontend template presents the website to the user viewing its content. The backend template presents a panel of controls for website administration. Templates are installed as extensions to Joomla and may be customised with source code overrides and/or CSS. Standard templates are included upon installation while other, third-party templates can be installed later. In general, templates designed for each major version of Joomla are not interoperable with other major versions of Joomla. The following table lists the standard templates installed with each major Joomla release.


Development and support


Developers

Joomla is maintained as an open source project by a community of volunteers and licensed under the
GNU General Public License The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the four freedoms to run, study, share, and modify the software. The license was the first copyleft for general ...
on an "as is" basis, without any warranty of any kind including implied warranties of merchantability and fitness for a particular purpose. The source code is maintained at
GitHub GitHub, Inc. () is an Internet hosting service for software development and version control using Git. It provides the distributed version control of Git plus access control, bug tracking, software feature requests, task management, continu ...
. The top two most popular public forums for discussing Joomla and seeking technical advice are at https://forum.joomla.org and https://joomla.stackexchange.com.


Conferences


J and Beyond
is a conference largely aimed at Joomla developers and site integrators and is hosted in Europe around May each year.


Financial support

Joomla is primarily funded by private sponsorships that offset OSM's operational costs; these costs include taxes, accounting, presence at ground events, operation of domains and so forth. The project receives the rest of its revenue from website advertising, commissions, examination fees and
Google Summer of Code The Google Summer of Code, often abbreviated to GSoC, is an international annual program in which Google awards stipends to contributors who successfully complete a free and open-source software coding project during the summer. , the program is ...
.


Awards


CMS Market Share

The following chart shows Joomla's share of the CMS market (against the market leader,
WordPress WordPress (WP or WordPress.org) is a free and open-source content management system (CMS) written in hypertext preprocessor language and paired with a MySQL or MariaDB database with supported HTTPS. Features include a plugin architecture ...
, as a comparison).


Google Searches Trend

The following chart shows the trend of searches on Google about Joomla over time.


See also

* Comparison of web frameworks * EasyBlog *
List of content management systems Content management systems (CMS) are used to organize and facilitate collaborative content creation. Many of them are built on top of separate content management frameworks. The list is limited to notable services. Open source software :''T ...


Notes


References


External links

* * {{Authority control Free content management systems 2005 software Blog software Content management systems Cross-platform software Free software programmed in PHP Internet software for Linux MacOS Internet software PHP frameworks Software forks Software using the GPL license Web development software Web frameworks Windows Internet software Website management