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Viz Palette vs Coloring for Colorblindness: catalog facts
Viz Palette	Coloring for Colorblindness
Free Free to use in the browser.	Free Free to use in the browser.
Web	Web
Simulates several color vision deficiencies Flags colors that are hard to distinguish at different sizes	Previews palettes under several types of color blindness Useful for charts and data visualisation colors
Focused on data visualization palettes only Does not generate palettes itself; links to other tools for that	Simulation only, with no automatic palette fixing Single-page tool with few other features
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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