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nip4 vs Fiji: catalog facts
nip4	Fiji
Free Free and open source under the GPL-2.0 licence.	Free Free and open source, funded by research institutions and grants.
Windows, Linux	macOS
Spreadsheet model recalculates dependent images when an input changes Built on the fast libvips image library	Bundles many ImageJ plugins in one install Automatic updater handles plugins and dependencies
No releases published on the GitHub repository Suited to processing pipelines rather than ordinary photo retouching	Aimed at scientific analysis rather than photo editing The large plugin set can be hard to navigate for newcomers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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