Public.com is an investment platform that offers commission-free trading across various asset classes, including stocks, ETFs, options, cryptocurrencies, and alternative assets like fine art and collectibles. It features a social community where users can share portfolios and insights, enhancing collaborative investing. Public.com does not accept payment for order flow, opting instead for direct routing of orders to exchanges to ensure transparent trade execution. The platform provides educational resources and thematic investment options, catering to both novice and experienced investors.