Abstract: Phase estimation algorithm is an ineluctable algorithm in the field of quantum computing as it has significant applications for itself, and it is frequently used as a subroutine in other quantum algorithms like Shors and Grover’s. Here, a quantum bit simulator is presented using which the well-known phase estimation algorithm is simulated and validated as an example. This quantum bit simulator helps us to achieve an understanding on quantum computers, explore existing quantum concepts like quantum cryptography, quantum chemistry etc. and to develop new quantum applications.