MPDS (Materials Platform for Data Science) is an online materials database originating from the PAULING FILE project, containing over 3 million entries of physical properties, crystal structures, and phase diagrams for inorganic materials. It offers multiple access tiers: free open access with login includes search by over 15 criteria, analysis tools, interactive plots, and access to around 50k datasheets; paid full GUI access adds detailed visualizations, data export in over 5 formats, high-quality redrawn phase diagrams, and access to around 3 million datasheets with full references and DOIs; paid API full access provides machine-readable data, regular updates, documentation and support, and OPTIMADE standard support, and includes full GUI access.
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Accessibility Insights is an open-source set of tools for finding and fixing accessibility issues. Accessibility Insights for Web is a browser extension for Chrome and Microsoft Edge that tests webpages and web applications; Accessibility Insights for Windows is a desktop tool for Windows applications. FastPass is used to find common accessibility issues. The Android tool is no longer available for download.
Directory of Open Access Books is a community-driven discovery service that indexes scholarly, peer-reviewed open access books and provides access to them. It also helps users find trusted open access book publishers. The directory lists over 109,000 peer-reviewed books, and its services and data are free of charge.
The Digital Library of Brno University of Technology is an institutional repository operated by the university's Central Library, built on the DSpace platform. It supports open access scientific publishing, offers grants for open access publication via its Open Access Fund, and integrates the Citace PRO citation manager to help users create and save bibliographic references. Users can browse communities and collections, or register for an account to access additional features.
MatDB is a database hosted within the European Commission Joint Research Centre's ODIN Portal, which operates as the EU's science and knowledge service to support European policies with independent evidence across the full policy cycle. The platform offers open access data catalogs, data summaries, citable datasets and catalogs, and DOI listings for frequently viewed, recently published, and recently uploaded data. The open access module only provides access to a limited subset of ODIN's hosted data, with full feature and data access requiring user registration and login. Downloading data from MatDB requires agreement to the licenses accompanying individual datasets and the ODIN terms and conditions.
ScholarSphere is an institutional repository managed by Penn State University Libraries. Anyone with a Penn State Access ID can deposit scholarly materials, including publications, instructional materials, creative works and research data. It supports Penn State's commitment to open access and open science and can help researchers meet open access and data availability requirements from funding agencies and publishers.
The Yale University Open Data Access (YODA) Project advocates for responsible sharing of clinical research data, open science, and research transparency. It partners with data partners that transfer full jurisdiction over data access to the project, and researchers can request data. The site states that 513 trials have been identified as available.
Smithsonian Open Access helps edit, convert, generate, search, or organize images and visual assets.
LOAR is the Library Open Access Repository. It hosts open access content organized into communities from participating institutions including Aalborg University, Aarhus University, the National Museum of Denmark and the Royal Danish Library. Users can browse collections, view recent submissions and log in to access additional features.
Open Access Library helps search books, ebooks, papers, library records, or reading archives.
The Repositorium der Herzog August Bibliothek is a repository providing access to library publications, research data, digital editions and other media. Publishing there follows Open Access and FAIR data principles. It also includes the FID BBI community, which offers publications and research data with open access licences.
Open Canada search for completed access-to-information requests and released government summaries.
OA.mg is a search engine for academic papers that specialises in open access content. It indexes over 240 million open access research papers, enabling users to search for and access full-text PDFs of papers across research fields, by specific author or publication. The platform also provides a Chrome extension to facilitate paper downloads.
The ODISSEI Portal combines metadata from social sciences research data repositories into a single interface. It supports advanced semantic queries for findability and facilitates data access. A link to the Data Access Broker allows open datasets to be downloaded directly, while restricted access datasets link to the provider's page.
Spectrum is Concordia University's open-access research repository. It preserves and centralizes access to research created at Concordia, and scholars deposit their work there to provide free and immediate access, increasing the visibility of their research and the university's intellectual output. It offers quick search, browsing by year, department, author or document type, and advanced search with combinable fields.
Accesser is a code project with source, releases, documentation, or setup notes.
Awesome Accessibility is a GitHub repository or organization with source code, releases, documentation, or project resources.
A data access portal for researchers who need multi-regional health and health-related administrative data in Canada. It centralizes the data access request form and harmonizes processes for requesting data from multiple repositories across the country. It also provides inventories, regional data information and resources on privacy, Indigenous data and informed consent.
DHS Data Access is the data repository for the DNB Household Survey, an annual survey conducted by Centerdata since 1993. The survey collects economic data from over 1500 households each year via six questionnaires covering topics including household composition, work, accommodation, health, income, assets, liabilities and economic and psychological concepts. Data is collected through the weekly Centerpanel, and repository access requires user login.
Forschungsdatenzentren der Statistischen Ämter des Bundes und der Länder is the Research Data Centre of the German federal and state statistical offices. It provides regulated access to microdata across topics including finance, legislation, taxes, economy, social issues, company data, agriculture, energy, environment, health, and household, with access to microdata regulated by law, offering Public Use Files, Scientific Use Files, and Remote Scientific Use Files. It also provides terms of use, access request processes, user charge information, e-learning resources, and confidentiality and anonymity protections for data users.
Paper Panda is an academic paper search platform that provides access to 250 million research papers. Users can locate paper PDFs, verify open access status, explore related citations, and access full-text PDFs in one click. The service reduces time spent navigating paywalls, login requirements, and redirect pages when retrieving research content.
Gutenberg Open Science is the official open science repository of Johannes Gutenberg University Mainz. It hosts open access academic submissions including dissertations, and provides access to the university's publications and research data, with content designated as visible, citable and open.
This Discord page presents Discord's open source projects and the open source communities hosted on Discord. It states Discord's commitment to open source development principles and lists contributions including Access, a portal for employees to discover and manage access to internal systems. It also lists open source libraries used to build Discord and invites users to create a server for their project.
The North Carolina Open Data Portal is operated by the North Carolina Office of State Budget and Management (OSBM). It provides public access to state datasets, with features including data maps, charts, and API access.