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ColorSmith vs Gpick: catalog facts
ColorSmith	Gpick
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source.
Linux	Windows, Linux
Screen color picker that works through the desktop portal Picker, gradient maker and palettes in one app	Samples colors from anywhere on the desktop Builds and edits palettes for design applications
Linux only Young project with a small user base	No macOS build mentioned GTK interface may feel out of place on Windows
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License not stated
Not stated if an account is 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 September 23, 2026

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