DeeperWeb
Open SourceDeeperWeb is a privacy-focused metasearch engine that enhances Google search results using tag cloud and topic map techniques for improved navigation and discovery. It prioritizes user privacy by not tracking searches.
Firefox Extensions to Meta-Search
Discover Firefox Extensions to Meta-Search.
Although not strictly a meta-search engine, Google incorporates results from specialized databases and properties.
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Invisible Hand
FreeInvisibleHand discretely helps users find lower prices while shopping online. It acts as a smart browser extension, automatically notifying you if the product or flight you are viewing is available at a cheaper price on another retailer's or travel site.
DuckDuckGo
FreeDuckDuckGo is a leading privacy-focused search engine that prioritizes user anonymity and transparent search results. Unlike traditional search engines, it does not track user activity, offering a safe and personal search experience without filter bubbles.
Disconnect Search
Open SourceDisconnect Search is a privacy-focused search engine and browser extension that prevents major search engines from tracking your searches and location. It routes your searches anonymously through Disconnect's servers, protecting your privacy while allowing you to utilize popular search providers like Google, Bing, and DuckDuckGo.