Java + Kotlin BUILD 2026.2.3

Code. Inspect. Debug. Stay inside one IDE.

Java, Kotlin, Spring, agents, and project navigation stay in the same IntelliJ IDEA window. 72% of Java developers work here.

Download IntelliJ IDEA Explore features

IntelliJ IDEA product mark on the homepage hero

Windows 10/11 Java + Kotlin Free core + Ultimate trial

01 / SPRING

See Spring the way your application sees it

IntelliJ IDEA reads your Spring beans and opens the failing line in a few clicks. The context stays visible while the app is running, not after you leave the editor.

Spring Boot Debug Inspections

NotifyHubApplication.java open in the editor, first of seven Spring run frames, before the bean error

AI Chat

02 / AI

Your agent works where your code already lives

Keep the agent beside the debugger and tests, in the same window. The walkthrough stays on the file the agent is editing, not in a separate chat product.

Agent picker open with Junie selected, first frame of the in-IDE AI walkthrough

In use at more than 300,000 organizations

03 / WORKBENCH

Language, index, and agents in one window

Hand the agent a task

Debugger paused on NotificationDispatcher in the homepage workbench

See the feature list

TRUST

SOC 2 Type II and GDPR, listed by the vendor

Official pages list SOC 2 Type II and GDPR. Checksums ship as sibling .sha256 files. Read the IntelliJ IDEA security notes before you exclude folders from a scanner.

SOC 2 Type IIListed on the official product page GDPRListed on the official product page

04 / DESKS

What the people on the desk actually said

Yasuaki Kato

Software engineer at a healthcare and senior-care technology company

"We stay on IntelliJ IDEA because it is the most efficient desk for our backend work."

Jay

Backend engineer at a company building software for self-service photo studios

"Git lets me stage partial commits, compare branches, and rebase in the IDE. Class diagrams help on large trees."

Varij Kapil

Former software developer at a company building quality IT and reporting tools

"Breaking changes crossed several Java modules. That rewrite would have stalled without JetBrains refactoring."

05 / INSTALL

Download IntelliJ IDEA

Agents read the same project index you do. The Windows x64 installer is 1.11 GB. Free core, 30-day Ultimate trial.

Download .exe

IntelliJ IDEA mark next to the download call

06 / COMPARE

IntelliJ IDEA beside other Java tools

Rows follow 2026 Java work. Ultimate-only items are marked.

Criterion	IntelliJ IDEA	Eclipse	VS Code	NetBeans
Project model	Whole-project index, inspections, refactor	JDT workspace, plugin-heavy	Editor plus Java extensions	Maven-first, all-in-one
Spring	First-class, deeper tools on Ultimate	Spring Tools / STS	Extension pack	Limited
Maven / Gradle	Built-in import, Gradle 10 preview	m2e / Buildship	Via extensions	Strong Maven
Debugger	Logpoints, evaluate, WSL2 fixes in 2026.2.3	Solid JDT debug	Good via extension	Standard
License	Free core, Ultimate subscription	Free, Eclipse Public License	Free editor	Free, Apache
Typical RAM	Plan 8 GB machine, 3 GB for the IDE	Varies with plugins	Lighter process	Moderate

07 / FAQ

Short answers before you install

Yes for core Java and Kotlin work, including commercial projects. Since 2025.3 there is one installer. First install includes a 30-day Ultimate trial. After that you can keep the free core or subscribe.

Yes. Official support lists Windows 10 and Windows 11, plus macOS 15 and 26, and current Ubuntu, Fedora, Debian, and Amazon Linux builds.

No. JetBrains Runtime 21 is bundled, so the IDE starts without a system JRE. You still need a standalone JDK to compile Java projects.

Real-time scanners inspect the cache, index, and class files the IDE writes constantly. Exclude the install folder, config, caches, project tree, and Gradle cache. Do not turn the scanner off.

Separate Community and Ultimate downloads ended in 2025.3. The free feature set remains inside the unified product after the trial ends.

Read the full FAQ