Open access to 1,585,492 e-prints in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
BASE is one of the world's most voluminous search engines especially for academic web resources. BASE provides access to 260M+ documents from more than 8,000 sources.
This Google tool for research lets you easily find relevant scholarly literature, such as books, theses, abstracts, and articles. Scholar indicates when a free full-text version of the article is available. Note many of these results will not appear on a regular Google search.
A new and still development search tool that offers keyword search across selected Open Access (OA) journals, OA aggregator feeds, microfilmed journal runs, old journals, and even archived webpages.
OAmg strives to help you become more productive at every stage of your academic work . They built a tool indexes open access materials in science, arts, business, and humanities.
Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.
A global science gateway comprised of national and international scientific databases and portals. This search engine accelerates scientific discovery and progress by providing one-stop searching of databases from around the world
This is the most interesting search engine on the web. You can compute expert-level answers using Wolfram’s breakthrough algorithms, knowledgebase and AI technology. There are lots of examples of computing you can do through this engine.
