offenedaten.frankfurt.de
Find published open datasets through filters, categories and keyword search.
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Published directory entries matching your search.
ons.gov.uk
Search empirical social data collections and supporting aggregated data from GBR.
data.gov.ua
Search and download open datasets published for Ukraine.
swb.bsz-bw.de
Online database for accessing the German National Library authority file.
b2.caspio.com
OH Court Costs helps search court cases, legal records, dockets, or public judicial information.
ohshint.gitbook.io
OH SHINT! is an OSINT resource for online investigations, research links, search methods, and public data tools.
oku.club
Oku helps search books, ebooks, papers, library records, or reading archives.
okular.kde.org
Okular helps search books, ebooks, papers, library records, or reading archives.
old.repair.wiki
Old Layout helps search books, ebooks, papers, library records, or reading archives.
library.olympics.com
Library catalogue and portal to Olympic knowledge.
app.readomni.com
Omni helps search books, ebooks, papers, library records, or reading archives.
pypi.org
Python package that queries several search engines to find indexed Tor onion pages.
onisaga.com
OniSaga helps search books, ebooks, papers, library records, or reading archives.
onlinebooks.library.upenn.edu
Online Books Page helps search books, ebooks, papers, library records, or reading archives.
ester.ee
Shared catalogue of the largest libraries of Estonia.
fviewer.com
Online Cloud File Viewer helps search books, ebooks, papers, library records, or reading archives.
ilibrary.ru
Search an online collection of books, documents, media and archival records.
qiarchive.org
Search an online collection of books, documents, media and archival records.
geoportal.statistics.gov.uk
Find published open datasets through filters, categories and keyword search.
onyphe.io
OSINT search engine for exposed assets, IPs, domains, certificates, and network data.
opac.pnm.gov.my
Research index for locating articles, books, authors and citation information.
opalsinfo.net
Bibliographic database for finding publications, citations and scholarly records.
oaji.net
Database of open-access scientific journals.
oalib.com
Open Access Library helps search books, ebooks, papers, library records, or reading archives.