Yes, Artmajeur is a legitimate online art gallery. It was created in 2000 by Samuel Charmetant and Yann Sarazin and is currently operated by the company ARTMAJEUR SARL, based in Clapiers, France. The platform is highly rated by users, with many artists praising its convenience, clear interface, and supportive team. It provides a global showcase for artworks and an efficient interface for sales management. Artists can sell a variety of works, including paintings, sculptures, photographs, and digital arts. The platform also offers print-on-demand and digital licensing services. It's worth noting that the positive reviews are based on an automated analysis of multiple data sources.