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The Java and Kotlin IDE

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IntelliJ IDEA download for Windows 10 and 11. Free, with 30 days of Ultimate included. Build 2026.2.3, 16 September 2026.

The Ultimate Spring Experience

See how IntelliJ IDEA understands your Spring application and helps you find and fix errors in just a few steps.

Step 1 of 7. Fix a Spring error in seconds. Start by running the app.

Any AI agent – one professional IDE

Watch an AI agent at work in IntelliJ IDEA and see how to use your preferred agent right inside the IDE.

Step 1 of 3. See how IntelliJ IDEA works with AI agents. Pick your agent.

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Smarter agents. Faster development. One professional IDE.

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Enterprise-grade security and governance

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 II: Listed on the official product page
GDPR: Listed on the official product page

Customer stories

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."

Download IntelliJ IDEA

Give your agents IDE-level context. Windows x64 installer is 1.11 GB. Free core, 30-day Ultimate trial.

Download .exe

IntelliJ IDEA vs other Java tools

Criteria come from how these tools are used in 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

Quick answers

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.

Open the full IntelliJ IDEA FAQ