In recent years, social media which can also said as online branding platforms have become indispensable tools for business to get engage with customer and to promote their goods and their services. Through this research we understood that the online branding implications on customer behaviour like purchasing decisions, Brand loyalty, trust on online branding influencers and their intention to try new goods or services. Additionally, this research also shows the role of online branding to make implications ton customer behaviour. Furthermore, it delves into implications on customer behaviour through the reviews, literature, and customer experience. This also shows the how the online branding use strategies like influencer marketing, user generating content, and target advertising, affect customer perceptions, attitude, and purchase decision. In this research the data has been collected through primary data by the help of questionary which showed that how many people uses social media, their intention after using social media, their trust towards social media, their purchase decision, etc. This paper aims to deliver a deeper understanding about the relationship between the customer and online branding marketing, offering valuable insights to enhance their marketing strategies and connect with the audience in digital age.