Its searchable catalog contains 3,953 emoji, which users can browse by name, keyword, meaning, popularity, category, or topic. Each entry provides information such as the emoji’s meaning, related keywords, developer codes, and appearance across platforms, with one-tap copying for convenient use.

The site organizes its collection into categories including smileys and emotion, people and body, animals and nature, food and drink, travel and places, activities, objects, symbols, flags, and emoji components such as skin tones. It also offers curated topics and collections, popular emoji lists, emoji combinations, kaomoji, symbols, and signs. Additional tools include an emoji keyboard, text-to-emoji translator, emoji art from a picture, and features for comparing emoji or creating stylized text. Supporting nine languages and Unicode 17.0, onlineemoji.com serves as an accessible reference for exploring emoji and using them in digital communication.