DuckDuckGo is an Internet search engine that emphasizes protecting searchers' privacy and avoiding the "filter bubble" of personalized search results. DuckDuckGo distinguishes itself from other search engines by not profiling its users and by deliberately showing all users the same search results for a given search term.

DuckDuckGo also emphasizes getting information from the best sources rather than the most sources, generating its search results from key crowdsourced sites such as Wikipedia and from partnerships with other search engines like Yandex, Yahoo!, Bing and WolframAlpha.

On 21 May 2014, DuckDuckGo launched a redesigned version that focused on smarter answers and a more refined look. The new version added often requested features like images, local search, auto-suggest and more.