Open data refers to publicly available data that can be freely accessed, used, modified, and shared by anyone without restrictions. It promotes transparency, innovation, and collaboration, as individuals, organizations, and governments can utilize the information to develop new solutions or insights. Open data initiatives often focus on sectors like government, healthcare, and environmental science, making data accessible for research, civic engagement, and informed decision-making. By fostering an open data ecosystem, stakeholders can drive economic growth and enhance public services through informed analysis and applications.