Polish Index is an independent nail polish database designed to make discovering and organizing polish easier. Its searchable catalog brings together products from many brands, with listings that include shades, names, and product details. Visitors can search by polish name, brand, or color, and browse using filters for finish, type, formula, and clean beauty attributes. The site also offers curated seasonal selections and nail inspiration, helping users explore colors and find ideas for their next manicure.

Polish Index highlights ingredient and product claims such as vegan, cruelty-free, HEMA-free, and various “free-from” formulas, with labels intended to help users compare options. Visitors can save favorite polishes, create boards, and build a personal collection; these features are described as syncing with the mobile app. The platform also provides color-matching tools, brand browsing, guides, and a Go Pro option. Polish Index describes itself as an independent resource, and notes that brands shown in its database are not affiliated with or endorsed by the service.