Introduction
With the advent of technology, the avlability of information has increased manifold. In the field of research, databases are an essential resource to access and yze large sets of data. Though several databases are avlable online, not all are accessible for free. Researchers, especially students, face difficulty in accessing these pd databases. However, there are a few databases that are avlable for free, and this article ms to provide an extensive list of such databases.
1. The World Bank Open Data
The World Bank Open Data provides free data from several countries across the globe. It covers topics such as education, health, finance, and economy, among others. The database offers easy download and access to data, making it a useful resource for students and researchers.
2. MEDLINE
MEDLINE is a database that provides access to a vast library of biomedical literature. The National Library of Medicine (NLM) manages the database, and it includes over thirty million citations from various sources. The database offers free access to abstracts and articles, making it a valuable resource for researchers in the field of medicine and health.
3. PLOS ONE
PLOS ONE is a database that provides access to peer-reviewed scientific articles. The database covers several topics such as biology, chemistry, physics, and computer science, among others. PLOS ONE offers free access to all articles published under its platform, making it a useful resource for researchers in various fields.
4. arXiv
arXiv is a preprint server that provides access to scientific papers and articles covering several disciplines such as physics, mathematics, computer science, and biology, among others. The database provides free access to articles, making it a valuable resource for researchers and students.
5. Europeana
Europeana is a database that provides access to digitized books, pntings, photographs, and newspapers from various European countries. The database offers over fifty million items, and it grants free access to all its resources, making it a valuable tool for students and researchers.
6. Google Scholar
Google Scholar is a popular search engine that provides access to academic literature. It covers a vast database of journals, articles, and books across various disciplines. Google Scholar offers free access to all resources avlable on its platform, making it a useful resource for students, researchers, and academicians.
7. PubMed
PubMed is a database that provides access to over thirty million citations in the field of medicine and health. The National Library of Medicine manages the database, and it offers free access to abstracts and several full-text articles, making it a useful resource for researchers and students in the field of medicine.
Conclusion
In conclusion, several databases are avlable for free, and they provide access to a wealth of information. The above list represents a few of the many free databases avlable online. These databases offer students and researchers an opportunity to access a vast collection of information and improve their research work. Therefore, it is essential to explore these resources and utilize them to their fullest potential.
相关问题拓展阅读：
- 外文全文数据库有哪些
外文全文数据库有哪些
问题一：外文期刊全文数据库有哪些求解答 维普资讯网是更大最全的中文科技期刊论文资源门户网站,提供针对《中文科技期刊数据库》等多个数据库的检索及全文浏览,资源涉及8000多种中文期刊、400多种中文报纸及一部分外文期刊数据,囊括了理、工、农、医、文史哲的全部专业,
问题二：要查外文文献有哪些好用的免费数据库 好象没有免费的，如果你有在一些重点大学有朋友，可以让他们帮你从高校图书馆查。
问题三：有没有免费的外文数据库推荐 香港科技大学图书馆Dspace
repository.ust/dspace
包括香港科技大学的学术论文、学位论文、研究报告等内容，均可免费获取全文。
Openj-gate
openj-gate/
提供4350种开放获取的期刊的数百万期刊全文文献。
加利福尼亚大学国际和区域数字馆藏
repositories.cdlib/escholarship/
加利福尼亚大学国际和区域数字馆藏研究项目。eScholarshipRepository主要提供已出版的期刊论文、未出版的研究手稿、会议文献以及其他连接出版物上的文章1万多篇，均可免费阅读。
剑桥大学机构知识库
dspace.cam.ac.uk/
由Cambridge University Library和University puting Service维护，提供剑桥大学相关的期刊、学术论文、学位论文等电子资源。
发展中国家联合期刊库
bioline.br/
非营利的电子出版物服务机构，提供来自发展中国家（如巴西、古巴、印度、印尼、肯尼亚、南非、乌干达、 津巴布韦等）的开放获取的多种期刊的全文。
美国密西根大学论文库
deepblue.lib.umich.edu/index.jsp
美国密西根大学论文库2万多篇期刊论文、技术报告、评论等文献全文。包含艺术学、生物学、社会科学、资源环境学等学科的相关论文，另还有博硕士论文。标识为OPEN的可以打开全文。
jfg
CERN Document Server
cdsweb.cern.ch/
主要覆盖物理学（particle physics）及相关学科，提供360,000多篇全文文献，包括预印文献、期刊论文、图书、图片、学位论文等等。
kl
ArXiv
……>>
问题四：外文数据库有那几个比较有名的？ 补充：TOR数据库是以政治学、经济学、哲学、历史等人文社会学科主题为中心，兼有一般科学性主题共十几浮领域的代表性学术期刊的过刊全文库。共收录约800种期刊，从创刊号到最近三至五年前过刊都可阅览PDF 格式的全文。有些过刊的回溯年代早至1665 年。
问题五：请高人指点，食品学科外文全文数据库都有哪些？ SCI Expanded，Elsevier数据库（ScienceDirect），CSA文摘，JCR期刊引证报告数据库等，有好多个
问题六：学校外文数据库不丰富，请问有没有什么免费的网站可以 去学校图书馆的网站，上面应该有外文数据库，去IEEE/IEE Electronic Library（IEL）全文数据库下载。我的就是这样下的，都是免费的。
问题七：外文评价型数据库有哪些 德国施普林格全文电子期刊数据库
ACS（美国化学学会）数据库
ACM（美国计算机学会）期刊
国道外文数据库
新华在线道琼斯财经资源教育版数据库
ProQuest外文学位论文全文数据库
ScienceDirect数据库
还有维基
问题八：关于教育方面的外文学术期刊数据库有哪些 当然是EBSCO数据库和FirstSearch 数据库 EBSCO的学术期刊数据库（Academic Source Premier） 提供了近 4,700 种出版物全文，其中包括 3,600 多种同行评审期刊。
问题九：综合性的外文电子期刊全文数据库有哪些 or have lived, in the shadow of death bring a me
问题十：外文数据库中可以获取全文的有哪些 只有标为open access的才可以获取全文，或是在已经购买的数据库中查找，或是可以通过文献传递。
关于常见免费英文数据库的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。
