IntelliJ IDEA vs OpenIDE

IntelliJ IDEA is an IDE for professional Java and Kotlin development, available on Windows, macOS, and Linux. It offers context-aware completion, static analysis, and automated refactoring. The JVM debugger includes breakpoints, variable inspection, expression evaluation, and step-by-step execution. Gradle and Maven integrations cover building, packaging, testing, and deployment, while version-control support includes Git, Mercurial, Perforce, and Subversion. Users can process GitHub pull requests in the IDE, and plugins from JetBrains Marketplace add support for other languages, frameworks, and technologies. Core Java and Kotlin functionality remains free after the included 30-day Ultimate trial ends. The Ultimate subscription adds advanced tools and integrations and costs $100.00 for the first year, $199.00 for the second year, and $159.00 per year from the third year onward. Listed minimum hardware is a 4-core x86_64 or arm64 CPU, 8 GB total RAM, and 10 GB of disk space. Users can choose in IDE settings whether to share anonymous usage data.

OpenIDE is a multilingual development environment based on the IntelliJ IDEA Platform, available for Linux, macOS, and Windows. Its listed languages include Java, Kotlin, Python, Go, C#, PHP, JavaScript, and TypeScript, although C# is in development. Spring support comes through the free Amplicode plugin. The included Git client covers branches, commits, rebase, cherry-pick, diffs, and history. OpenIDE lists GitFlic integration and AI plugins including GigaCode, Continue, and Kilo Code; its marketplace offers more than 300 plugins subject to their distribution licenses. Docker, Go, and frontend support for JavaScript, TypeScript, and frameworks including React, Angular, Vue, and Next.js are marked experimental. The free OpenIDE plan is free and is described as open source. OpenIDE Pro is a paid corporate solution with terms and pricing discussed with the company; free access is offered to educational programs, open-source contributors, and media content creators. The FAQ says anonymized usage statistics may be collected by default and can be disabled in settings. The maker says its infrastructure and servers for statistics, updates, and plugins are in Russia.