Up-to-date and comprehensive information on population trends is crucial for many aspects of conservation planning for Australia’s threatened species, including listing processes, prioritisation analyses, and designing and evaluating the impact of conservation actions. The Threatened Species Index (TSX) is an internationally bench-marked tool to aggregate data and provide reliable and robust measures of change in the relative abundance of Australia’s threatened and near-threatened species at national, state and regional levels. The tool is used by government, non-government organisations, conservation practitioners and researchers across Australia. The TSX tool has so far been applied to develop trends from discoverable data related to plants, mammals, birds and frogs and continues to expand, integrating additional monitoring datasets from across the country each year into a centralised database. The 2024 release of the index included data on 335 taxa within the existing 4 groups, with more groups to be added in the coming years. In this poster presentation, we will explore the data management and analysis tools that form the TSX, specifically, our Trend Visualiser Tool and the Data Management Interface. We will demonstrate the features and benefits of these tools for both data providers and users. Finally, we will highlight how the TSX is being used by governments and others to support their conservation management of Australia’s most imperilled species.