MarkVD

6 listings we've seen · as of 6 Oct 2026. This is the maker name shown on the store, not proof of who owns the company.

Developer Tools

Full information about any color (schemes, shades, conversion in rgb, hsl, etc.). Eyedropper, Color Picker and Gradient Generator.

Tools

Free tool providing information about any Unicode character.

Education

Free tools for performing various calculations with fractions.

Education

Z-table lookup: Find the percentage of values below a given z-score in a standard normal distribution.

Developer Tools

CSS Gradient Editor (Linear, Radial and Conic).