The modern information environment is tightly linked to the advancement of digital technologies based on the binary numeral system, thereby requiring a solid understanding of binary coding principles. Many learners find this subject challenging because of its abstract character and the substantial theoretical content it entails. Purpose: the present work seeks to create an interactive educational application aimed at improving the effectiveness of instruction on binary coding and at strengthening students’ practical abilities in handling binary representations of numbers. Methods: the research employs methods of interactive educational system design, with the software implemented in Python using the PyQt5 framework. The resulting architecture comprises a theoretical reference module, a binary operation calculator, and a practical training mode with automated answer verification. Results: a fully functional application has been created, integrating both theoretical and practical aspects of studying binary coding. The calculator mode implements operations for addition, subtraction, multiplication, division, and bitwise transformations in direct, inverse, and complementary codes. The practical module ensures the automatic generation of tasks and provides formative feedback, which enhances material retention and the development of computational skills. Practical significance: the developed application can be used in educational institutions for teaching disciplines related to digital logic, computing technology, and computer architecture. The programme enhances the visibility of the educational process and provides interactive practice that aids in the reinforcement of theoretical knowledge through practical application.