Ecosia is a search engine that donates a portion of its profits to organisations that work to plant trees and reforestation. It was founded in 2009 with the aim of making a positive impact on the environment with the profits from the search engine.

In addition to its focus on sustainability and the environment, Ecosia is also known for its privacy-friendly policies. Ecosia does not track or collect personal data from its users and is transparent about the data it collects and how it is used.

Ecosia is available as a standalone website and as a browser extension for various web browsers. Ecosia generates revenue through advertising and donates a portion of its profits to tree planting and reforestation projects around the world. By 2021, the company claims to have planted over 100 million trees.