The HeteroAryl Descriptor (HArD) Database, along with a Python script for data processing, is available on a publicly accessible GitHub repository (github.com/turkiAlturaifi/HArD). The repository includes the scripts used to generate the database, as well as an Excel file listing the SMILES representations of mono-substituted heteroaryls along with their associated descriptors. The repository is organized into two main folders: (i) the database processing