The Sustainable Urban Forest
A Step-by-Step Approach
A flexible roadmap for sustainable UF planning >>

Help improve i-Tree Tools, resources and services
i-Tree Customer Satisfaction Survey >>

Learn how to use i-Tree Tools from our Video Learning Resources
Learn more >>

i-Tree 2017 Suite version 6.1.19 is now available
Learn more >>
Download >>

Learn about i-Tree in upcoming UNRI online workshops
See topics and dates >>

New i-Tree Reports applying i-Tree Eco, Design, Canopy & Hydro
See the Reports Page >>

Expert Q&A on i-Tree with David Nowak, U.S. Forest Service
Article in Leaf Litter >>

Trees provide ecosystem services worth $500 million to the world’s megacities
Article in Mongabay >>

The Science of Trees in Cities Municipal Equation Podcast episode and article >>

Read the latest
i-Tree Newsletters >>

View archived webinars or past presentations
See archived presentations >>

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What is i-Tree?

  • Quantify structure, risk & environmental services of trees
  • Advocacy and management tools for community trees
  • Built upon peer-reviewed USFS science
  • Free and easy to use

i-Tree is a state-of-the-art, peer-reviewed software suite from the USDA Forest Service that provides urban and rural forestry analysis and benefits assessment tools. The i-Tree Tools help communities of all sizes to strengthen their forest management and advocacy efforts by quantifying the structure of trees and forests, and the environmental services that trees provide.

Since the initial release of the i-Tree Tools in August 2006, thousands of communities, non-profit organizations, consultants, volunteers and students have used i-Tree to report on individual trees, parcels, neighborhoods, cities, and even entire states. By understanding the local, tangible ecosystem services that trees provide, i-Tree users can link forest management activities with environmental quality and community livability. Whether your interest is a single tree or an entire forest, i-Tree provides baseline data that you can use to demonstrate value and set priorities for more effective decision-making.

i-Tree Tools are in the public domain and are freely accessible. We invite you to explore this site to learn more about how i-Tree can make a difference in your community or forest.