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jGRASP vs Apache NetBeans: catalog facts
jGRASP	Apache NetBeans
Free Free to download.	Free Free and open source under the Apache License 2.0.
Windows, macOS, Linux	Windows, macOS, Linux
Data structure viewers that draw textbook-style diagrams Control structure diagrams for many languages	Strong Java support with semantic highlighting and refactoring Project wizards and templates for Java and PHP
Requires Java 11 or later Eclipse plugin has not been updated since 2020	Heavier than lightweight editors Tutorials are partly under review
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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