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The Leading IDE for Professional Java and Kotlin Development

June 1, 2021 - IntelliJ IDEA is the JetBrains IDE for pro development in Java and Kotlin. Built for your comfort, it unlocks productivity, ensures quality code, supports cutting-edge tech, and protects your privacy.

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Built for web, data, and AI/ML professionals. Supercharged with an AI-enhanced IDE experience.

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Download the latest version of IntelliJ IDEA, the leading IDE for professional development in Java and Kotlin. Available for Windows, macOS, and Linux.

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IntelliJ IDEA

integrated development environment

IntelliJ IDEA (pronounced /ɪnˈtɛlɪdʒeɪ/ in-TEL-ih-jay "idea") is an integrated development environment (IDE) written in Java for developing computer software written in Java, Kotlin, Groovy, and other JVM-based languages. It is developed by … Wikipedia

Factsheet

Developer JetBrains

Initial release 1.0 / January 2001; 24 years ago (2001-01)

Stable release 2025.3
/ 8 December 2025

Factsheet

Developer JetBrains

Initial release 1.0 / January 2001; 24 years ago (2001-01)

Stable release 2025.3
/ 8 December 2025

jetbrains.com › products › compare

Compare IntelliJ IDEA Ultimate vs. undefined

Find the right tool · Whichever technologies you use, there's a JetBrains tool to match

Discussions

Can't use latest Java Version (JDK 21) in IntelliJ IDEA - Stack Overflow

I'm using macOS and I want to try Java 21 in IntelliJ IDEA. I believe I have done all the required steps to change Java version of a project / module. Nevertheless I still can't use new Java 21 Fea... More on stackoverflow.com

stackoverflow.com

IntelliJ IDEA 2024.3 EAP 5: Extended Support for Kotlin Features, Updates to Find in Files, Option to Disable Pre-Commit Checks, and More : java

News, Technical discussions, research papers and assorted things of interest related to the Java programming language NO programming help, NO... More on old.reddit.com

r/java

the java RAM usage incident (looking at you IntelliJ)

Python devs be like More on reddit.com

r/ProgrammerHumor

619

17223

May 17, 2022

Setting up Java JDK for Intellij from Flatpak

Try the native version?

Or try installing jdk with flatpak too

More on reddit.com

r/linuxquestions

1

1

February 27, 2020

Videos

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January 2, 2022

How to Create First Java Program in IntelliJ IDEA IDE - YouTube

Run Java Code in IntelliJ IDEA: The Ultimate Guide - YouTube

reddit.com › r/intellijidea › for what is intellij actually used?

r/IntelliJIDEA on Reddit: For what is Intellij actually used?

January 5, 2024 -

I hear so many rumors that Intellij is specifically for Java and android app development however, I also hear that people use Intellij for another programming languages. Is that true? Is it worth to just uninstall my pycharm and install components required for python development in Intellij?

I use IntelliJ for everything: Java, scala, Python, Typescript, Kubernetes stuff... I don't see any reason to have both IntelliJ and PyCharm. One is a superset of the other, isn't it?

JetBrains's pattern is to make a standalone IDE where necessary, and provide that same functionality in IntelliJ IDEA as a plugin for IntelliJ IDEA Ultimate. If you look at JetBrains's Python plugin, the description says " The Python plug-in provides smart editing for Python scripts. The feature set of the plugin corresponds to PyCharm IDE Professional Edition". If you need to be able to work with multiple languages, IntelliJ IDEA Ultimate might be best for you, or purchasing the language-specific IDEs.

jetbrains.com › guide › java › tips › download-jdk

Download a JDK - JetBrains Guide

October 1, 2025 - If the necessary JDK is already defined in IntelliJ IDEA, select it from the JDK list. If the JDK is installed on your computer, but not defined in the IDE, select the option Add JDK from the list and specify the path to the JDK home directory (for example, /Library/Java/JavaVirtualMachine...

currently.att.yahoo.com › att › intellij-idea-2025-3-arrives-160549394.html

IntelliJ IDEA 2025.3 arrives with more free features, full Java 25 support

2 days ago - JetBrains has released IntelliJ IDEA 2025.3, the first version of the new unified IDE for Java development.

jetbrains.com › idea-edu

Learn Java, Kotlin, and Scala with IntelliJ IDEA

May 27, 2021 - Want to learn Java, Kotlin, or Scala? Are you ready to create programming courses? IntelliJ IDEA has everything for learners and educators!

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en.wikipedia.org › wiki › IntelliJ_IDEA

IntelliJ IDEA - Wikipedia

3 weeks ago - IntelliJ IDEA (pronounced /ɪnˈtɛlɪdʒeɪ/ in-TEL-ih-jay "idea") is an integrated development environment (IDE) written in Java for developing computer software written in Java, Kotlin, Groovy, and other JVM-based languages.

System requirements

jetbrains.com › guide › java › tutorials › hello-world

Hello World in IntelliJ IDEA - JetBrains Guide

February 17, 2023 - Use IntelliJ IDEA to run your Hello World application. ... We can package the application into a Java ARchive file (JAR).

dev.java › learn › intellij-idea

Building a Java application in IntelliJ IDEA - Dev.java

April 22, 2024 - One of the most widely used integrated development environments (IDEs) for Java is IntelliJ IDEA. Its user-friendly interface, rich feature set, and vast ecosystem make it an ideal environment for beginners to learn and grow as developers.

jetbrains.com › edu-products › download

Get Your Educational Tool - JetBrains

Download the latest version of Educational Products by JetBrains: for Windows, macOS or Linux.

www3.ntu.edu.sg › home › ehchua › programming › howto › IntelliJ_HowTo.html

How to use IntelliJ IDEA for Java Programming

IntelliJ IDEA is an integrated development environment (IDE) written in Java for developing computer software written in Java, Kotlin, Groovy, and other JVM-based languages.

eswlab.com › products › jetbrains › intellij

JetBrains – IntelliJ IDEA Ultimate – The Most Intelligent Java IDE – ESL

While IntelliJ IDEA is an IDE for Java, it also understands and provides intelligent coding assistance for a large variety of other languages such as SQL, JPQL, HTML, JavaScript, etc., even when the language expression is injected into a String literal in your Java code.

JUnit 6 is the current generation of the JUnit testing framework, which provides a modern foundation for developer-side testing on the JVM. It requires Java 17 and Kotlin 2.1 or above and enables many different styles of testing.

baeldung.com › home › ide › how to change the java version in an intellij project

How to Change the Java Version in an IntelliJ Project | Baeldung

June 20, 2025 - We should note that Language level is an important configuration setting in IntelliJ. When we don’t manually configure the target bytecode version for the compiler, which is typically done at Settings → Build, Execution, Deployment → Compiler → Java Compiler, the target bytecode version will be the same as the project Language level setting.

github.com › JetBrains › intellij-community

GitHub - JetBrains/intellij-community: IntelliJ IDEA & IntelliJ Platform

This repository is the open-source part of the JetBrains IDEs codebase. It also serves as the basis for IntelliJ Platform development.

Starred by 19.3K users

Forked by 5.6K users

Languages Java 53.1% | Kotlin 34.4% | Python 9.3% | HTML 1.5% | Starlark 0.8% | JavaScript 0.2%

stackoverflow.com › questions › 77141340 › cant-use-latest-java-version-jdk-21-in-intellij-idea

Can't use latest Java Version (JDK 21) in IntelliJ IDEA - Stack Overflow

I needed to update Intellij version to 2023.2.2 and change Language level (File -> Project structure -> project -> language level) to 21 (preview)

The new language level won't show up until Intellij is updated to the latest version.

To update Intellij, I needed to manually check for new update

Manually updating Intellij on Mac

Intellij IDEA | Check for Updates

Manually updating Intellij on Windows / Linux

File | Settings | Appearance & Behavior | System Settings | Updates

I followed a few options mentioned above, but nothing worked. The main problem was that the Gradle plugin was configured to use an older JDK version. I had to change it in the below settings to use JDK-21. After changing the JDK here, then everything worked fine.

openjfx.io › openjfx-docs

Getting Started with JavaFX

Report a problem Install JavaFX SDK · Report a problem Run HelloWorld via Maven · Report a problem Run HelloWorld via Gradle · Report a problem Runtime images · Report a problem Use IntelliJ IDEA Use NetBeans Use Eclipse Use Visual Studio Code · Report a problem Use NetBeans Next steps ·

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IntelliJ IDEA, a JetBrains IDE - YouTube

The official channel for IntelliJ IDEA – the leading IDE for professional development in Java and Kotlin. Subscribe to receive demos, tutorials and new features highlightings.