Urban environments worldwide are grappling with the challenges of overtourism, a phenomenon characterized by excessive visitor numbers that overwhelm local infrastructure, disrupt community life, and threaten cultural heritage. This chapter explores the potential of digital platforms and participatory technologies in empowering local communities to manage urban tourism more sustainably. The central research question asks: How can digital platforms and participatory technologies empower local communities in managing urban tourism? To address this question, we employed a mixed-methods approach, conducting case studies, surveys, and in-depth interviews in three cities at the forefront of innovative tourism management: Amsterdam, Barcelona, and Dubai. Our research reveals three key findings. First, digital platforms significantly increase community engagement in tourism planning processes, fostering a more democratic approach to urban development. Second, participatory technologies, such as virtual and augmented reality tools, help residents and stakeholders visualize proposed urban changes, leading to more informed decision-making. Third, while these digital tools offer promising solutions, challenges persist in ensuring equitable access across diverse socio-economic groups. This chapter contributes to the field by proposing a comprehensive framework for integrating digital tools in sustainable urban tourism management. By synthesizing empirical evidence from three distinct urban contexts, we offer practical insights for policymakers, urban planners, and tourism managers seeking to leverage technology in addressing overtourism. This framework emphasizes the importance of inclusive digital strategies that balance tourism growth with community needs and cultural preservation.