Use a search engine that doesn't build an advertising profile based on your searches.
DuckDuckGo is one of the more mainstream private search engine options. Notable DuckDuckGo search features include bangs and many instant answers. The search engine relies on a commercial Bing API to serve most results, but it does use numerous other sources for instant answers and other non-primary results.
While DuckDuckGo’s primary service is its search engine, the company has recently been branching out by offering various other services and products. This includes their web browsers, email relay service, etc.
DuckDuckGo is the default search engine for the Tor Browser and is one of the few available options on Apple’s Safari browser.
Startpage is a private search engine known for serving Google search results. Startpage's flagship feature is Anonymous View, which puts forth efforts to standardize user activity to make it more difficult to be uniquely identified. Unlike the name suggests, the feature should not be relied upon for anonymity. If you are looking for anonymity, use the Tor Browser instead. The feature can be useful for hiding some network and browser properties—see the technical document for more details.
Startpage has been known to refuse access to those using a VPN service or Tor, so your mileage may vary.
Brave Search is developed by Brave and serves results primarily from its own, independent index. The index is optimized against Google Search and therefore may provide more contextually accurate results compared to other alternatives.
Brave Search includes unique features such as Discussions, which highlights conversation-focused results—such as forum posts.
We recommend you disable Anonymous usage metrics—it is enabled by default and can be disabled within settings.
SearXNG is an open-source, self-hostable, metasearch engine, aggregating the results of other search engines while not storing any information itself. It is an actively maintained fork of SearX. There is a list of public instances.
SearXNG is a proxy between you and the search engines it aggregates from. Your search queries will still be sent to the search engines that SearXNG gets its results from.
When self-hosting, it is important that you have other people using your instance so that the queries would blend in. You should be careful with where and how you are hosting SearXNG, as people looking up illegal content on your instance could draw unwanted attention from authorities.