Dupe Detector - Find Duplicate Art Supplies

Compare art supply sets before buying to avoid duplicates. See which colors you already own and discover truly new colors in any set. Perfect for comparing Ohuhu markers, Copic markers, Prismacolor pencils, and 50+ other brands.

How It Works

Select the sets you own (like Ohuhu Honolulu, Copic Sketch, Arrtx Oros, Prismacolor Premier), then choose a set you're considering buying. Dupe Detector compares the colors and shows you which ones you already have, helping you avoid buying duplicate alcohol markers, colored pencils, acrylic markers, or gel pens.

Features

Compare multiple owned sets against new purchases, see color similarity percentages using Delta-E color science, and make informed buying decisions. Works with alcohol markers, colored pencils, acrylic markers, gel pens, watercolors, gouache, pastels, distress inks, and embroidery threads from brands like Ohuhu, Copic, Arrtx, Faber-Castell, Prismacolor, Grabie, Brutfuner, Tooli-Art, and more.