The article introduces the Isolation by Distance Web Service (IBDWS), a user-friendly web interface for analyzing population genetic data to determine patterns of isolation by distance. IBDWS offers a range of statistical tests, including Mantel tests, Reduced Major Axis (RMA) regression analysis, and $F_{ST}$ calculations, along with basic summary statistics and publication-quality scatter plots. The software is designed to be accessible and efficient, with rapid analysis times and high-quality graphics. It is hosted at http://phage.sdsu.edu/~jensen/ and the source code is available on Source Forge. The authors highlight the software's features, implementation details, and future developments, emphasizing its utility for molecular ecology, conservation genetics, population genetics, and genomics researchers.The article introduces the Isolation by Distance Web Service (IBDWS), a user-friendly web interface for analyzing population genetic data to determine patterns of isolation by distance. IBDWS offers a range of statistical tests, including Mantel tests, Reduced Major Axis (RMA) regression analysis, and $F_{ST}$ calculations, along with basic summary statistics and publication-quality scatter plots. The software is designed to be accessible and efficient, with rapid analysis times and high-quality graphics. It is hosted at http://phage.sdsu.edu/~jensen/ and the source code is available on Source Forge. The authors highlight the software's features, implementation details, and future developments, emphasizing its utility for molecular ecology, conservation genetics, population genetics, and genomics researchers.