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Gpick vs Colour Contrast Analyser: catalog facts
Gpick	Colour Contrast Analyser
Free Free and open source.	Free Free to download, with source code published on GitHub.
Windows, Linux	Windows, macOS
Samples colors from anywhere on the desktop Builds and edits palettes for design applications	Screen-wide eyedropper for foreground and background Results for WCAG 2.0, 2.1 and 2.2
No macOS build mentioned GTK interface may feel out of place on Windows	Windows and macOS only Checks one color pair at a time
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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