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nip4 vs chaiNNer: catalog facts
nip4	chaiNNer
Free Free and open source under the GPL-2.0 licence.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, Linux	Windows, macOS, Linux
Spreadsheet model recalculates dependent images when an input changes Built on the fast libvips image library	Combines image operations and AI upscaling in a visual pipeline.
No releases published on the GitHub repository Suited to processing pipelines rather than ordinary photo retouching	Some operations need additional models or processing dependencies.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-3.0
No account needed	Not stated if an account is 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 22, 2026

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