Harmonie du Japon is an online boutique offering Japanese-inspired products and accessories for everyday use, home decoration, and gift-giving. Its range brings together traditional motifs and contemporary Japanese aesthetics, with categories including Japanese dolls, good-luck charms such as Maneki-neko, Daruma and omamori, and decorative items like posters, lanterns, noren curtains and mini fountains. The shop also offers Japanese models and puzzles, kitchen accessories, tea and sake sets, teapots, chopsticks, bracelets, purses and keychains.

For those interested in Japanese tea culture, Harmonie du Japon features matcha kits containing a bowl, whisk, spoon and matcha, alongside information and inspiration about preparing and enjoying matcha. The brand says it carefully selects suppliers and products for their quality, appearance and connection to Japanese culture, including familiar designs such as sakura flowers and wave patterns. Its website also shares articles and practical advice related to Japanese culture and wellbeing. Customer service is presented as attentive and inspired by omotenashi, or Japanese hospitality, with support available by email and a focus on reliable, efficient shipping.