i-Tree is a suite of software tools developed by the USDA Forest Service that helps users analyze and understand the benefits provided by trees and urban forests. These tools are designed to quantify ecosystem services such as air quality improvement, carbon sequestration, and stormwater reduction, helping communities make informed decisions about the management and conservation of their green infrastructure. i-Tree offers various applications tailored to different scales and objectives, from individual tree assessments to regional analyses. The software is widely used by urban planners, policymakers, researchers, and environmental enthusiasts to promote sustainable urban forestry practices.