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

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