Compare software

Colour Contrast Analyser vs Instant Eyedropper: catalog facts
Colour Contrast Analyser	Instant Eyedropper
Free Free to download, with source code published on GitHub.	Free Free, with source code on GitHub.
Windows, macOS	Windows, Linux
Screen-wide eyedropper for foreground and background Results for WCAG 2.0, 2.1 and 2.2	Hotkey, click and paste workflow Magnifier with pixel-precise arrow key nudging
Windows and macOS only Checks one color pair at a time	Reborn version is an early 0.1 release No macOS version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
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 24, 2026

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