IntelliJ IDEA () is an

integrated development environment An integrated development environment (IDE) is a Application software, software application that provides comprehensive facilities for software development. An IDE normally consists of at least a source-code editor, build automation tools, an ...

(IDE) written in

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

for developing computer software written in Java, Kotlin,

Groovy ''Groovy'' (or, less commonly, ''groovie'' or ''groovey'') is a slang colloquialism popular during the 1960s and 1970s. It is roughly synonymous with words such as "excellent", "fashionable", or "amazing", depending on context. History The word ...

, and other

JVM A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are also compiled to Java bytecode. The JVM is detailed by a specification that formally descri ...

-based languages. It is developed by

JetBrains JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

(formerly known as IntelliJ) and is available as an Apache 2 Licensed community edition with proprietary license for some bundled plugins, and in a proprietary commercial edition. Both can be used for commercial development.

History

The first version of IntelliJ IDEA was released in January 2001 and was one of the first available Java IDEs with advanced code navigation and

code refactoring In computer programming and software design, code refactoring is the process of restructuring existing source code—changing the '' factoring''—without changing its external behavior. Refactoring is intended to improve the design, structure, ...

capabilities integrated. In 2009, JetBrains released the source code for IntelliJ IDEA under the

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

Apache License The Apache License is a permissive free software license written by the Apache Software Foundation (ASF). It allows users to use the software for any purpose, to distribute it, to modify it, and to distribute modified versions of the software ...

2.0. JetBrains also began distributing a limited version of IntelliJ IDEA consisting of open-source features under the moniker Community Edition. The commercial Ultimate Edition provides additional features and remains available for a fee. In a 2010 ''

InfoWorld ''InfoWorld'' (''IW'') is an American information technology media business. Founded in 1978, it began as a monthly magazine. In 2007, it transitioned to a Web-only publication. Its parent company is International Data Group, and its sister pu ...

'' report, IntelliJ received the highest test centre score out of the four top Java programming tools:

Eclipse An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three ...

, IntelliJ IDEA,

NetBeans NetBeans is an integrated development environment (IDE) for Java (programming language), Java. NetBeans allows applications to be developed from a set of modular software components called ''modules''. NetBeans runs on Microsoft Windows, Windows, ...

and

JDeveloper JDeveloper is a freeware IDE supplied by Oracle Corporation. It offers features for development in Java, XML, SQL and PL/SQL, HTML, JavaScript, BPEL and PHP. JDeveloper covers the full development lifecycle from design through coding, debug ...

. In December 2014, Google announced version 1.0 of

Android Studio Android Studio is the official integrated development environment (IDE) for Google's Android operating system, built on JetBrains' IntelliJ IDEA software and designed specifically for Android development. This is available for download on W ...

, an

IDE for Android apps, based on the open source community edition. Other development environments based on IntelliJ's framework include

AppCode JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

, CLion,

DataGrip JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

, GoLand,

PhpStorm JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

PyCharm PyCharm is an integrated development environment (IDE) used for programming in Python. It provides code analysis, a graphical debugger, an integrated unit tester, integration with version control systems, and supports web development with D ...

, Rider,

RubyMine JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

, WebStorm, and MPS. In September 2020,

Huawei Huawei Technologies Co., Ltd. ("Huawei" sometimes stylized as "HUAWEI"; ; zh, c=华为, p= ) is a Chinese multinational corporationtechnology company in Longgang, Shenzhen, Longgang, Shenzhen, Guangdong. Its main product lines include teleco ...

announced and released version 1.0 of DevEco Studio, an open-source IDE for

HarmonyOS HarmonyOS (HMOS) ( zh, s=鸿蒙, p=Hóngméng, tr=Vast Mist) is a distributed operating system developed by Huawei for smartphones, tablet computer, tablets, smart TVs, smart watches, personal computers and other smart devices. It has a microk ...

apps development, based on

Jetbrains JetBrains s.r.o. (formerly IntelliJ Software s.r.o.) is a Czech software development private limited company which makes tools for software developers and project managers. The company has its headquarters in Amsterdam, and has offices in Ch ...

IntelliJ IDEA with Huawei's SmartAssist for

Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

and

macOS macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

System requirements

Features

Coding assistance

The IDE provides certain features like

code completion Code completion is an autocompletion feature in many integrated development environments (IDEs) that speeds up the process of coding applications by fixing common mistakes and suggesting lines of code. This usually happens through popups while typ ...

by analysing the context, code navigation which allows jumping to a class or declaration in the code directly,

, code debugging, linting and options to fix inconsistencies via suggestions.

Built in tools and integration

The IDE provides integration with build/packaging tools like Maven,

Grunt Grunt, grunts or grunting may refer to: Sound and music * Grunting (tennis), in tennis refers to the loud noise, sometimes described as "shrieking" or "screaming", made by some players during their strokes * Death grunt, the death metal singi ...

Gradle Gradle is a build automation tool for multi-language software development. It manages tasks like compilation, packaging, testing, deployment, and publishing. Supported languages include Java (as well as JDK-based languages Kotlin, Groovy, Sc ...

, and sbt. It supports databases like

Microsoft SQL Server Microsoft SQL Server is a proprietary relational database management system developed by Microsoft using Structured Query Language (SQL, often pronounced "sequel"). As a database server, it is a software product with the primary function of ...

Oracle An oracle is a person or thing considered to provide insight, wise counsel or prophetic predictions, most notably including precognition of the future, inspired by deities. If done through occultic means, it is a form of divination. Descript ...

PostgreSQL PostgreSQL ( ) also known as Postgres, is a free and open-source software, free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance. PostgreSQL features transaction processing, transactions ...

, SQLite, and

MySQL MySQL () is an Open-source software, 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 rel ...

can be accessed directly from the IDE in the Ultimate edition, through an embedded version of

, another IDE developed by JetBrains.

Plugin ecosystem

IntelliJ IDEA supports plugins through which one can add additional functionality to the IDE. Plugins can be downloaded and installed either from IntelliJ's plugin repository website or through the IDE's built-in plugin search and install feature. Each edition has separate plugin repositories, with the Community edition supporting over 7,600 plugins, and the Ultimate edition supporting over 8,300 plugins, as of November 2024.

Supported languages

The Community and Ultimate editions differ in their support for various programming languages as shown in the following table. Supported in both Community and Ultimate Edition: * CSS, Sass, SCSS, Less,

Stylus A stylus is a writing utensil or tool for scribing or marking into softer materials. Different styluses were used to write in cuneiform by pressing into wet clay, and to scribe or carve into a wax tablet. Very hard styluses are also used to En ...

HTML Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets ( ...

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...

JSON JSON (JavaScript Object Notation, pronounced or ) is an open standard file format and electronic data interchange, data interchange format that uses Human-readable medium and data, human-readable text to store and transmit data objects consi ...

, YAML *

* Kotlin * Markdown *

XSL In computing, the term Extensible Stylesheet Language (XSL) is used to refer to a family of languages used to transform and render XML documents (e.g., XSL is used to determine how to display a XML document as a webpage). Historically, the W3C XS ...

XPATH XPath (XML Path Language) is an expression language designed to support the query or transformation of XML documents. It was defined by the World Wide Web Consortium (W3C) in 1999, and can be used to compute values (e.g., strings, numbers, or ...

Supported in both Community and Ultimate Edition via plugins: *

Clojure Clojure (, like ''closure'') is a dynamic programming language, dynamic and functional programming, functional dialect (computing), dialect of the programming language Lisp (programming language), Lisp on the Java (software platform), Java platfo ...

* CloudSlang * Dart * Elm * Erlang * Gosu *

Haskell Haskell () is a general-purpose, statically typed, purely functional programming language with type inference and lazy evaluation. Designed for teaching, research, and industrial applications, Haskell pioneered several programming language ...

Haxe Haxe is a high-level cross-platform programming language and compiler that can produce applications and source code for many different computing platforms from one code-base. It is free and open-source software, released under an MIT License. ...

* Julia * Lua *

Perl Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, there are various backronyms in use, including "Practical Extraction and Reporting Language". Perl was developed ...

* Python * R *

Rust Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe2O3·nH2O) and iron(III) oxide-hydroxide (FeO(OH) ...

* Scala Supported only in Ultimate Edition: *

CoffeeScript CoffeeScript is a programming language that compiles to JavaScript. It adds syntactic sugar inspired by Ruby, Python, and Haskell in an effort to enhance JavaScript's brevity and readability. Some added features include list comprehension an ...

ActionScript ActionScript is an object-oriented programming language originally developed by Macromedia Inc. (later acquired by Adobe). It is influenced by HyperTalk, the scripting language for HyperCard. It is now an implementation of ECMAScript (mean ...

JavaScript JavaScript (), often abbreviated as JS, is a programming language and core technology of the World Wide Web, alongside HTML and CSS. Ninety-nine percent of websites use JavaScript on the client side for webpage behavior. Web browsers have ...

TypeScript TypeScript (abbreviated as TS) is a high-level programming language that adds static typing with optional type annotations to JavaScript. It is designed for developing large applications and transpiles to JavaScript. It is developed by Micr ...

* SQL Supported only in Ultimate Edition via plugins: *

Cython Cython () is a superset of the programming language Python, which allows developers to write Python code (with optional, C-inspired syntax extensions) that yields performance comparable to that of C. Cython is a compiled language that is ty ...

* Go * PHP *

Ruby Ruby is a pinkish-red-to-blood-red-colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapph ...

and JRuby

Technologies and frameworks

Source: Supported in both Community and Ultimate Edition: * Android (includes the functionality of

) *

Ant Ants are Eusociality, eusocial insects of the Family (biology), family Formicidae and, along with the related wasps and bees, belong to the Taxonomy (biology), order Hymenoptera. Ants evolved from Vespoidea, vespoid wasp ancestors in the Cre ...

* Test runners ( JUnit, TestNG,

Spock Spock is a fictional Character (arts), character in the ''Star Trek'' media franchise. He first appeared in the Star Trek: The Original Series, original ''Star Trek'' series serving aboard the starship USS Enterprise (NCC-1701), USS ''Enterpri ...

Cucumber The cucumber (''Cucumis sativus'') is a widely-cultivated creeping vine plant in the family Cucurbitaceae that bears cylindrical to spherical fruits, which are used as culinary vegetables.JavaFX * Maven Supported only in Ultimate Edition: * Django * Thymeleaf, FreeMarker,

Velocity Velocity is a measurement of speed in a certain direction of motion. It is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of physical objects. Velocity is a vector (geometry), vector Physical q ...

* Grails *

Jakarta EE Jakarta EE, formerly Java Platform, Enterprise Edition (Java EE) and Java 2 Platform, Enterprise Edition (J2EE), is a set of specifications, extending Java SE with specifications for enterprise features such as distributed computing and web serv ...

( Jakarta Faces, JAX-RS, CDI, JPA, etc.) * Micronaut, Quarkus, Helidon * Node.js, React, Vue.js, Angular * AspectJ, JBoss Seam,

OSGi OSGi is an open specification and open source project under the Eclipse Foundation. It is a continuation of the work done by the OSGi Alliance (formerly known as the Open Services Gateway initiative), which was an open standards organization fo ...

Play Play most commonly refers to: * Play (activity), an activity done for enjoyment * Play (theatre), a work of drama Play may refer also to: Computers and technology * Google Play, a digital content service * Play Framework, a Java framework * P ...

* Ruby on Rails * sbt * Spring There was a free plugin from

Atlassian Atlassian Corporation () is an Australia, Australian-United States, American proprietary software company that specializes in collaboration tools designed primarily for software development and project management. Domicile (law), Domiciled in ...

for IntelliJ available to integrate with JIRA,

Bamboo Bamboos are a diverse group of mostly evergreen perennial plant, perennial flowering plants making up the subfamily (biology), subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family, in th ...

Crucible A crucible is a container in which metals or other substances may be melted or subjected to very high temperatures. Although crucibles have historically tended to be made out of clay, they can be made from any material that withstands temperat ...

and FishEye. However, the software, called IDE-Connector, was discontinued on June 1, 2015.

Software versioning and revision control

The two editions also differ in their support for

software versioning Software versioning is the process of assigning either unique ''version names'' or unique ''version numbers'' to unique states of computer software. Within a given version number category (e.g., major or minor), these numbers are generally assig ...

and

revision control Version control (also known as revision control, source control, and source code management) is the software engineering practice of controlling, organizing, and tracking different versions in history of computer files; primarily source code ...

systems. Supported in both Community and Ultimate Edition: * Git * Mercurial *

Subversion Subversion () refers to a process by which the values and principles of a system in place are contradicted or reversed in an attempt to sabotage the established social order and its structures of Power (philosophy), power, authority, tradition, h ...

* Azure DevOps (formerly TFS/VSTS; via plug-in) Supported only in Ultimate Edition: * Perforce

Bibliography

* *

References

{{Integrated development environments Free integrated development environments Java development tools Java (programming language) software Products introduced in 2001 Software using the Apache license