https://private.sh/ is something I've been working on lately. It is powered by my search engine of 20 years, https://gigablast.com/ . private.sh can't be evil because it uses javascript encryption to encrypt your query so that only gigablast can read it, and then it routes your encrypted query through a proxy so that gigablast does not know your IP. This level of privacy is a notch above what everyone else is offering as it is guaranteed by cryptography. Basically we can only offer this because Gigablast is the back-end search engine, not Google or Bing. You need a backend search engine that supports the encrypted query protocol. All the other "search engines" in the U.S. are just serving Bing or Google, but mostly just Bing.
https://github.com/gigablast is the gigablast open source software. private.sh just uses javascript so that's already available by viewing the html source. there is also a chrome extension for private.sh as well as an android app in the google play store if you want to have a persistent, verifiable version of the javascript if you are concerned about MITM attacks.
