Ahmia is a clearnet search engine for Tor's onion services created by Juha Nurmi in 2014.

[3] Developed during the 2014 Google Summer of Code by Juha Nurmi with support from the Tor Project,[1] the open source[4].

[9] In a study in Scientific Reports explained the filtering policies for Ahmia and its role in combating the distribution of illicit content on the Tor network.

The paper also acknowledged the contributions of the first author, Juha Nurmi, the creator of Ahmia as he expanded filtering policies in November 2023.

According to the scientific publication, the decision to broaden content filtering was the result of the research findings, which showed that 11 percent of search sessions sought child sexual abuse material on Tor and that around one-fifth of onion websites hosted such unlawful content.