Until now, the most popular private alternative to search engine giants like Google was DuckDuckGo. According to its CEO, DuckDuckGo has approximately 25 million users. It recently even surpassed Bing to become the #2 mobile search engine in the United States.
Like Brave, DuckDuckGo offers an option for users who wanted a more private experience when searching the world wide web. However, DuckDuckGo does not currently have a desktop browser. It does offer a mobile browser, however, and its search engine is accessible from any device.