Crowdfunding is a sustainable funding option that involves raising small amounts of money from many people, typically via online platforms or social networks. Crowdfunding offers a decentralized approach to raising funds for entrepreneurs by connecting with a wider audience of potential backers who intend to contribute towards a specific idea. This chapter delves into the world of crowdfunding by defining the concept of crowdfunding and its historical evolution since the pre-internet era. The chapter discusses various types and models of crowdfunding and their subsequent efficacies. It discusses the transformative role of crowdfunding platforms and their impact on the entrepreneurial culture. The discussion encompasses the role of crowdfunding on community engagement and social impact. The chapter concludes by presenting various inherent challenges and risks involved in crowdfunding, thereby providing a comprehensive overview of the dynamics that shape this innovative funding landscape. The chapter provides an in-depth understanding into the evolution, functioning and potential ramifications of crowdfunding in the contemporary financial ecosystem.