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Coulr vs Gpick: catalog facts
Coulr	Gpick
Free Free and open source under the MIT licence.	Free Free and open source.
Linux	Windows, Linux
Screen color picker built in Quick conversion between RGB and hex	Samples colors from anywhere on the desktop Builds and edits palettes for design applications
Linux only Few features beyond conversion and picking	No macOS build mentioned GTK interface may feel out of place on Windows
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
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 September 23, 2026

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