IntelliJ IDEA: Java and Kotlin IDE for You and Your Agents

Trusted by 72% of Java developers
The Java and Kotlin IDE for you and your agents
Free – with 30 days of Ultimate included
Configure how you work
Choose how each agent launches, in the GUI or the terminal, and what the IDE keeps front and center – your code or the agent session.
Move in parallel without losing context
Work with multiple agents at once, in one project or across several, without re-explaining state or codebase context.
Keep track of every session
See which sessions are currently running, done, or waiting on you. Comment on a line in the diff and send it back to the agent to act on.
Review and verify changes
Debugging, testing, profiling, and database tools are all one click away, so you can confirm that nothing breaks before you merge the change.
Configure how you work
Choose how each agent launches, in the GUI or the terminal, and what the IDE keeps front and center – your code or the agent session.
Move in parallel without losing context
Work with multiple agents at once, in one project or across several, without re-explaining state or codebase context.
Keep track of every session
See which sessions are currently running, done, or waiting on you. Comment on a line in the diff and send it back to the agent to act on.
Review and verify changes
Debugging, testing, profiling, and database tools are all one click away, so you can confirm that nothing breaks before you merge the change.
Task: rename a method used across 100 files
fix → rebuild → repeat
Illustrative example. Tool call counts include discovery, edits, and builds.
Develop confidently with AI
Generating code quickly with AI is the easy part. Trusting the result is harder. IntelliJ IDEA closes the loop: Generate with AI, and then validate immediately with a debugger, test runner, and built-in inspections. Ship with confidence, not just speed.
Professional Java and Kotlin development – from day one
Get industry-leading support for Java and Kotlin, plus first-class Spring integration developed in close collaboration with the Spring Framework team, and deep support for other modern frameworks and technologies your applications rely on, including Jakarta EE, Micronaut, and Quarkus.
Deep code understanding everywhere in your project
Work confidently with an IDE that understands your application in depth, with intelligent navigation, accurate refactorings, advanced inspections, and reliable debugging throughout your codebase.
All the tools you need, built in
Everything you need is already part of IntelliJ IDEA. Work with databases, test APIs, profile applications, and more without leaving the IDE. Deeply integrated tools keep you focused, eliminate context switching, and streamline your entire workflow.
Want to know more? Explore other features
Want to know more? Explore other features
About JetBrains for Business
Software Engineer at a healthcare and senior care technology company
“The reason we use IntelliJ IDEA is because we believe it is the most efficient choice for development.”
Backend Engineer at a company building software for self-service photo studios
“Git integration enables partial commits, branch comparisons, and rebasing within the IDE. For large-scale codebases, class diagrams and dependency analysis provide a clear view of structure and impact. When needed, tuning indexing and build caches improves speed even further."
A former Software Developer at a company building custom IT and cloud solutions
“Breaking changes and refactoring need to happen in multiple Java modules and React components. Making such huge changes would not have been possible without JetBrains products.”
CIO at a company building digital infrastructure for healthcare