Search engines

Name Javascript is required Backend Manipulated results Ads Does it block Tor? Source of the results Summary
Google Kinda Proprietary Yes Yes Yes Collected by their own crawler The results are not consistent, you get different results based on how much information they know about your session. Avoid.
Bing Kinda, only text results Proprietary Yes Yes Yes Collected by their own crawler Avoid.
Yahoo! No Proprietary Yes Yes No Collected by their own crawler Results change based on your location, worst results. Avoid.
DuckDuckGo Kinda, only text results Proprietary Yes Yes No Mainly Bing but they fetch results from multiple search engines, they have their own crawler as well Recommended
Startpage No Proprietary Probably not Yes No Google Avoid.
Qwant No Proprietary Yes Yes No Collected by their own crawler Results change based on your location. Avoid.
Ecosia Yes Proprietary Probably not Yes No Yahoo!, Bing, Wikipedia "Plants trees for every given amount of searches." Algae is better than trees.
Swisscows Yes Proprietary Yes Yes No Bing and they have their own crawler Avoid.
Yandex Kinda, no image results Proprietary ? Yes You have to solve a captcha (this works without JS) Collected by their own crawler Russian, suspicious.
Brave Search Kinda, no image results Proprietary Probably not No No Google Recommended
LibreX No and doesn't have any JS AGPL-3.0 No No No Many search engines Recommended
SearXNG Yes AGPL-3.0 No No No Many search engines Recommended
Whoogle No MIT No No No Google Recommended