IntelliJ IDEA OSS
JetBrains · The open-source edition of IntelliJ IDEA, distributed as a macOS application through Homebrew Cask.
About
IntelliJ IDEA OSS is the open-source edition of IntelliJ IDEA. JetBrains describes the community repository as the open-source part of its IDE codebase and as a basis for IntelliJ Platform development. This cask installs the application build, rather than providing instructions or tools for building the repository from source.
The supplied package is a graphical application named IntelliJ IDEA OSS.app. The cask fetches its disk image from the JetBrains intellij-community GitHub releases and installs the app in /Applications. The project repository contains source for IntelliJ IDEA and the IntelliJ Platform; the cask itself identifies the app as the open-source edition.
To install on macOS with Homebrew, run:
brew install --cask intellij-idea-oss
After installation, open IntelliJ IDEA OSS from your Applications folder. The cask declares macOS as its platform dependency. The repository also documents building the open-source code, but that is a separate, source-development workflow and is not required to install this cask.
Sources: JetBrains community repository · Homebrew Cask definition
New What’s new in 2026.2.3 From Homebrew commits
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