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ColorSmith vs Coulr: catalog facts
ColorSmith	Coulr
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the MIT licence.
Linux	Linux
Screen color picker that works through the desktop portal Picker, gradient maker and palettes in one app	Screen color picker built in Quick conversion between RGB and hex
Linux only Young project with a small user base	Linux only Few features beyond conversion and picking
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
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 October 1, 2026

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