Blockchain technology is largely used in banking, but it also has applications in gaming, real estate, supply chain management, and healthcare. By 2023, digital money will be the most widely discussed blockchain application. The potential uses of blockchain technology concerning various facets of any sector, market, agency, or governmental organization have gained attention in recent years. Blockchain scalability analyzes the effects on the security of scaling blockchain networks to support more transactions per second. This innovative distributed peer-to-peer architecture drew the interest of companies and communities outside and inside the financial sector. Furthermore, the system it operates in has been created around numerous scenarios that address the trust issue in open networks without the requirement for a trustworthy third party. Even though its decentralized structure allows for a wide range of potential applications, scalability remains a hurdle. Function extension, excessive delay in confirmation, and performance inefficiency are three important areas where blockchain scalability has been hindered. This research paper provides a thorough summary of previous research on scalable blockchain systems.