Openness is one of the basic principles of the criminal process, ensuring the transparency of the justice system. This article will explore the role of technology in integrating process transparency into the legal framework. In particular, technological progress in digital tools and platforms to facilitate the open conduct of hearings and public access to trial information will be assessed. Current practices will be analyzed to identify how the principle of public access to trials in criminal law works and the impact of technology in increasing the transparency of procedures. Moreover, the article will focus on measures and protocols guaranteeing the right to public participation and the consequences of violating the transparency of the process. By incorporating technology into the analysis of the criminal justice process, this article will report on the potential of digital innovations to enhance the transparency of judicial processes.