Computer Science, Computer Engineering and Information Technology are the domains which are impacting our lives from various perspectives. Advanced evolving technologies provide solutions and assist us in running businesses in both online and on-workstation forms. They also aid us in predicting, analysing, controlling, monitoring, tracking and preventing health diseases. Furthermore, the impacts of digital technologies and social media on promoting education and facilitating government services are massive. However, with all the enormous benefits; there are still many challenges and undiscovered areas of applications in these emerging technologies. The 3^rd International Conference of Computer Science and Information Technology (ICCSIT 2021) aims to gather innovative research contribution, and provides a valuable opportunity for researchers to exchange their ideas in a wide variety of scientific and application areas with a common interest in Computer Science and Engineering, and Information Technology..

ICCSIT 2021 is hosted in Kuala Lumpur, Malaysia, in February 26, 2021.