intellij-sdk-code-samples/topics/products/idea/idea.md

IntelliJ IDEA Plugin Development

Introduction to developing plugins for IntelliJ IDEA.

IntelliJ IDEA is available in two editions: IntelliJ Community Edition and IntelliJ IDEA Ultimate. See Choose your edition and Feature Comparison for a detailed comparison.

IntelliJ IDEA Plugin Setup

{id="ideaPluginSetup"}

Gradle Build Script

Define a dependency using intellijIdeaCommunity() or intellijIdeaUltimate(), see Versions link on top of this page for all available versions. See for using a local installation.

Minimum build.gradle.kts setup:

repositories {
  mavenCentral()
  intellijPlatform {
    defaultRepositories()
  }
}

dependencies {
  intellijPlatform {
    intellijIdeaCommunity("<versionNumber>")
  }
}

The configuration of IntelliJ IDEA plugin projects follows the methods described in Configuring Plugin Projects using the IntelliJ IDEA Product Attribute.

gradle-intellij-plugin Attribute	Attribute Value
intellij.type	IC for IntelliJ IDEA Community Edition (default) IU for
intellij.version	IDE version, e.g. 2022.2

Available API

See for API from bundled plugins.

provides information specific to this edition.

Java

See Java Plugin on how to use Java-specific functionality.

PSI Cookbook lists a number of common operations for working with Java PSI.

Depending on the exact functionality, a plugin can also target to support multiple JVM languages, including Java and Kotlin.

Relevant Extension Points:

Java Test Framework

To use existing test base classes, add TestFrameworkType.Plugin.Java test-framework available from .

Alternatively, specify com.jetbrains.intellij.java:java-test-framework:$VERSION$ as testImplementation dependency explicitly (see IntelliJ Platform Artifacts Repositories).

Kotlin

Configure Kotlin plugin dependency with plugin ID org.jetbrains.kotlin.

See also UAST on how to support multiple JVM languages, including Kotlin.