This document describes a proposed online compiler system that allows users to write, compile, and debug programs for four computer languages (C, C++, Java, and Python) directly through a web browser or mobile application without needing to install separate compilers. The system would use cloud computing to reduce storage and memory requirements compared to local compilers. Programs would be compiled securely using MD5 encryption. Users could access their files and run test cases from any internet-connected device. The system aims to make programming practice and exams more convenient by removing installation burdens and allowing usage anywhere.