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Apache NetBeansjGRASP
Free

Free and open source under the Apache License 2.0.

 Free

Free to download.

Windows, macOS, Linux Windows, macOS, Linux
  • Strong Java support with semantic highlighting and refactoring
  • Project wizards and templates for Java and PHP
  • Data structure viewers that draw textbook-style diagrams
  • Control structure diagrams for many languages
  • Heavier than lightweight editors
  • Tutorials are partly under review
  • Requires Java 11 or later
  • Eclipse plugin has not been updated since 2020
Downloadable app Downloadable app
Open source Closed source
License: Apache-2.0 License not stated
No account needed No account needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked October 2, 2026

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