IntelliJ IDEA is available from JetBrains in free and paid editions, depending on the current product lineup and features you need. On Windows, use JetBrains’ official installer or JetBrains Toolbox rather than downloading repackaged installers from third-party sites.
Check compatibility before installing
Because Windows 10 reached the end of Microsoft’s standard free support in 2025, check JetBrains’ current system requirements for the IntelliJ IDEA version you intend to use. A current IDE release may eventually require a newer supported Windows environment even if an older build still launches.
Install IntelliJ IDEA with the Windows installer
- Go to JetBrains’ official IntelliJ IDEA download page.
- Select the appropriate Windows download and edition.
- Run the downloaded installer.
- Review the destination and optional setup choices.
- Complete installation and launch IntelliJ IDEA.
Only enable file associations, PATH changes, or context-menu integrations you actually want. The installer options can change between releases.
JetBrains Toolbox is another option
Developers who use several JetBrains products may prefer JetBrains Toolbox. It can install IDEs, manage multiple versions, and handle updates from one application. Use the method that best matches how you maintain development tools.
You may not need to install Java separately for the IDE itself
Current IntelliJ IDEA distributions include a JetBrains Runtime for running the IDE. That is separate from the JDK your own Java project targets. Configure a project SDK/JDK that matches the application’s development requirements rather than assuming the IDE runtime is your project’s Java environment.
Choose a project JDK deliberately
When creating or opening a Java project, IntelliJ can help locate or download a JDK. Follow the project’s required Java version, build tooling, and organizational policy. A newer JDK is not automatically compatible with every existing project.
Keep the IDE updated
IDE updates include bug fixes, platform changes, and security-related fixes. Use IntelliJ’s update mechanism or Toolbox, but read release requirements before a major-version upgrade on an older operating system.
Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.