Online library catalogue for State Library of Queensland.
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Published directory entries matching your search.
Shared catalogue of the largest libraries of Estonia.
Search an online collection of books, documents, media and archival records.
Online digital collection at the University of Turin, Italy.
Search an online collection of books, documents, media and archival records.
Searchable database of home sales and property transactions in Onondaga County.
Browse digitized texts, images, archives and cataloged cultural materials.
Research index for locating articles, books, authors and citation information.
OPALS is an open-source integrated library system with modules for cataloguing, online public access catalog, circulation, inventory, reports, union catalog and interlibrary loan, equipment and asset management, textbook management, ebook management, streaming video and digital archive management. It is offered for school, academic, special and public libraries.
Find and access computer, systems and electrical engineering research data, with indexed dataset.
Archives of the Democratization Movement Memorial Foundation.
The Open Energy Platform is a site for making energy system modelling transparent. It offers a database where contributors publish datasets under an open license for download, scenario bundles giving context to contributed data, and the Open Energy Ontology for data annotation and management. An academy provides courses and tutorials on Open Energy Family tools.
The Open Exoplanet Catalogue is a decentralized, open-source database of discovered extrasolar planets. The website displays the catalogue in a browser, while the data is stored as human-readable XML files in a git version control system. Contributions and corrections are accepted from professional astronomers and the public, and data can be downloaded from the GitHub repository.
Digital library for searching books, documents, images and online collections.
OpenAddresses is a free and open global collection of address data. It combines street names, house numbers and postal codes with geographic coordinates to connect digital to physical places. The data can be parsed and imported into a database, placed on a map, or used for geocoding, and is openly licensed.
Network of Open Access repositories, archives and journals that support Open Access policies.
OpenBenches is a platform that hosts a map of public memorial benches. As of the listed data, it includes 44,306 user-added benches, and allows users to search bench inscriptions, view random bench listings, and add new bench entries to the map.
OpenCelliD is a community-built open database of cell towers and their estimated locations. Contributors record nearby cell identifiers with GPS locations, and the data is processed into cell location estimates. The dataset covers GSM, CDMA, UMTS, LTE and 5G NR networks and is available through an API and CSV downloads, supporting device geolocation without GPS.
OpenCorporates provides legal-entity data drawn from official primary sources across more than 140 jurisdictions. It offers search of its legal-entity database and access to data through a self-serve API or secure bulk delivery. The site lists use cases including entity verification, third-party risk management, investigations and data management. API plans carry stated monthly and annual prices.
OpenCVE is a searchable database of CVEs and security vulnerabilities, showing results with vendor, product, update date and CVSS scores. It also offers example searches such as CVEs in KEV and CVEs with high EPSS scores.
Opendesk is an online marketplace that hosts independently designed furniture and connects customers to local makers around the world. Customers select designs, request quotes from local makers, choose a maker and receive furniture delivered direct from the maker. The project describes a distributed supply chain built through a global maker network rather than mass manufacturing and worldwide shipping.
OpenEI is an open energy information platform that provides access to crowdsourced energy data, information, and applications from industry and government agencies. It covers hundreds of energy-related topics including geothermal, solar, wind, hydrogen, utilities, buildings, and smart grid. Its resources support education, data exploration, and industry decision-making, and include initiatives such as the Open Energy Data Initiative, Utility Rate Database, and specialized data repositories and toolkits.
Browse digitized texts, images, archives and cataloged cultural materials.
OpenModelDB is a community-driven database of AI upscaling models, intended as a way to find and compare models. It distributes pretrained model files and describes upscaling as increasing image or video resolution with machine learning.