Searx is "a free internet metasearch engine which aggregates results from more than 70 search services."
It doesn't track or profile users, unlike most commercial search engines. It is also free/libre/open software and can be self-hosted for extra privacy.
Test and hack a search engine
Self-host and modify a Searx instance to explore the effects that algorithmic changes can have in search results.
How to use it
- Surveillance-based search services Google, Bing, and Yahoo
- Privacy-oriented commercial search services like DuckDuckGo