Free database

Database name languages Database type Coverage
Baiteng Patent chinese patent Science and engineering
Full text publication system of national standards chinese Standard, full text/abstract Transportation, telecommunication, computer, chemical industry, etc
National Academic Journal Database of Philosophy and Social Sciences chinese Journal, full text social science
Official website of the State Intellectual Property Bureau chinese Patent, full text Science and engineering
Hans Open Source Chinese Journal chinese Journal, full text comprehensive
SooPAT Patent Search chinese patent Science and engineering
China Intellectual Property Network chinese patent Science and engineering
China Optical Resources Database chinese Journal, Abstract Science and engineering
Online quality papers of Chinese scientific and technological papers chinese periodical comprehensive
China Engineering Science and Technology Knowledge Center chinese Data, policy, online communication platform, etc comprehensive
Zhixintong chinese intellectual property right comprehensive
CJDA (Cambridge Full Text Journal Backtracking Library) english Full text retrospective journal (1770-1996) Whole discipline
DOAJ (Open Access System of Lund University Library in Sweden) english Full text current issue Whole discipline
Emerald full-text journal backtracking library english Full text retrospective journal (1898-2000) Management, Engineering
Hathi Trust english Multiple document types Whole discipline
HighWire Electronic Journal english Full text current issue Whole discipline
IET full-text journal backtracking database english Full text retrospective journal (1872-1993) Engineering
IGI Global Journal Database english Full text current issue Business and management, computer and information technology, environment and agriculture, government and law, media and communication, science and engineering, security and forensics, social science and humanities, etc
InTech Journal Full Text Database english Full text current issue Science, technology and medicine
MDPI Press Open Access Journal Database english Full text current issue Multidisciplinary
NSTL Open Access Journal System english Full text current issue Whole discipline
NSTL retrospective journal english Full text retrospective journal Whole discipline
NSTL current issue english Full text current issue Multidisciplinary
Brazil Online Science and Technology Electronic Library english Multiple document types Multidisciplinary
Journal Database of American Research Press english Full text current issue Biomedicine, Economics and Management, Chemistry, Computer, Environment, Engineering, Physics, Mathematics, Humanities and Social Sciences
Japanese Electronic Science and Technology Information Integration english Full text current issue Electronic and technical information