The dynamically developing IT industry is struggling with the lack of qualified software developers. The number of students in this area could be increased if more youngsters were familiar with programming in the public education system. The developed kodosulosuli.hu portal offers interactive programming courses and coding challenges in four different programming languages: C++, C#, Java, and Python for free. Our goal with the design and development of kodolosuli.hu was to give the younger

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... ation the opportunity to learn the basics of programming in a playful way. We started operating the portal in 2015. In this paper, we primarily present the experience gained over the last 5 years and the results of the analysis of the data collected during the operation of the portal. Based on the collected experiences, both the completed improvements and the possible future development directions are presented. This paper also outlines our future goals, which are primarily aimed at enhancing learning efficiency.