Lucene

An open-source, full-text search library written in Java.

Yandex

Russian internet company that operates a search engine, translation service and AI-driven personal assistant.

Yahoo!

Search engine and web portal powered by knowledge-based technology and artificial intelligence.

Google

Search engine that allows users to search for information on the web using text, images, videos, and more.

Exalead

A French-based search engine that offers a powerful search engine and advanced search capabilities.

Ask

Question and answer search engine.

StartPage

Meta search engine that combines the results of two search engines - Google and Ixquick.

AltaVista

Internet search engine and web portal site

Icerocket

Icerocket is a real-time search engine that helps users find, analyze, and share content across multiple social networks.

Ask Jeeves

Natural language question-answering search engine

AOL Search

A search engine that includes a variety of services, including AOL mail, news, weather, video search and more.

DuckDuckGo

Search engine that does not track or share user data.

Bing Search

Web search engine from Microsoft.

Apache Nutch

Open-source web-search software that can search the web for content.

Yandex Search

A Russian-based search engine that offers a variety of features, including image search and video search.

Wolfram Alpha

Wolfram Alpha is a search engine that answers questions using natural language processing and AI technology.

Google Search

Internet search engine developed by Google.

Elasticsearch

Open source distributed search engine for powerful full-text search.

Finditionally

AI-driven search engine that uses natural language processing to understand the context of your queries.

Yahoo Search

Search engine from Yahoo!.