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IntelliJ IDEABlueJ
Freemium

The Community Edition is free. IntelliJ IDEA Ultimate requires a paid subscription.

 Free

Free and open source under the GPL-2.0 with the Classpath Exception.

Windows, macOS, Linux Windows, macOS, Linux
  • Refactorings and inspections that understand the whole project, not just the file
  • Community Edition is free and open source
  • Designed for beginners learning Java
  • Native installers for Windows, macOS and Linux, including ARM64
  • Framework support, profiler and database tools are Ultimate features
  • Indexing a large project is slow and memory-hungry
  • Java only
  • Requires a 64-bit operating system; 32-bit users need the old 4.1.4 release
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 License: GPL-2.0-only WITH Classpath-exception-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.