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KColorChooser vs Instant Eyedropper: catalog facts
KColorChooser	Instant Eyedropper
Free Free and open source under the MIT license.	Free Free, with source code on GitHub.
Linux	Windows, Linux
Screen-wide color dropper Built-in web and Oxygen palettes	Hotkey, click and paste workflow Magnifier with pixel-precise arrow key nudging
Linux only Basic feature set compared with dedicated design tools	Reborn version is an early 0.1 release No macOS version
Downloadable app	Downloadable app
Open source	Closed 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 24, 2026

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