Directory
Published directory entries matching your search.
The National Geothermal Data System provides a search interface for accessing geothermal data, with tools including a search map, facets and record detail views. A help page explains how to use the site features to access data.
Nonprofit Explorer is a ProPublica database of annual returns filed by tax-exempt organizations, using IRS data released since 2013. It lets users search for organizations and people, view details such as executive compensation, revenue and expenses, and download tax filings going back to 2001. ProPublica also provides an API to the search engine and database powering the tool.
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.
PDF search engine for finding public PDF files, documents, books, and reports.
PimEyes is a face recognition search engine and reverse image search tool that locates images containing given faces across publicly accessible parts of the internet. It is intended for monitoring online image presence and tracking where photos are reused.
OSINT.sh tool for searching public cloud buckets and exposed storage resources.
Radio-Locator is an AM and FM radio station search engine. It links to over 17,100 radio stations' web pages and over 12,200 audio streams from stations in the U.S. and around the world. Users can find U.S. radio by location, city or zip, call letters, or format, and search world radio by state, Canadian province, city or location.
Recoll is a desktop document search application for Unix, Linux, Microsoft Windows and MacOS, built on the Xapian search engine library. It finds documents based on their contents as well as their file names and can search most document formats. The software is free on Linux, open source, and licensed under the GPL.
Dark-web style recon search page for finding indexed data and investigation leads.
Visual search engine for finding images with similar style, mood, composition, or subject matter.
Searchthearxiv is a simple semantic search engine for machine learning papers on arXiv. Users can input arXiv links to find similar papers or use natural language queries to search for relevant research.
SerpBear is an open source search engine position tracking app. It tracks a website's keyword positions in Google and sends email notifications about position changes. It uses third-party scrapers or proxy IPs to scrape Google search results, with Basic, Custom and Smart scrape strategies. A built-in API supports reporting tools, and Google Ads and Search Console integrations are available.
AI literature search, document translation, and deep-research workspace for researchers.
Build semantic search and retrieval applications.
The University of Hertfordshire Research Archive is a research repository hosted and managed by CoSector, University of London, powered by the EPrints 3.4 platform. It supports OAI 2.0 and houses research outputs including publications, theses, and datasets, which users can browse by author, funder, publication type, or search via a repository search function. The archive provides information on its policies, accessibility, cookie usage, and contact details, and displays a total count of its full text and total records.
An OSINT tool for investigating usernames online. It presents a custom search form that redirects to search engines and websites of external parties. The page notes that usernames can contain real information and that unique usernames are more likely to indicate the same person across accounts.
viaLibri describes itself as a search engine for old, rare and second-hand books. It aggregates online catalogues from booksellers and offers Libribot, a saved search service that checks wants against its search index and emails users about new matching items. Harvest connects bookseller websites to viaLibri.
Rapid7 Vulnerability & Exploit Database is a curated repository of vulnerability and exploit data maintained by Rapid7 Labs. It provides verified CVE intelligence, public exploit details, and remediation guidance, with exploit modules and check methods integrated into the Metasploit Framework. The database is searchable and updated with the latest public vulnerability and emergent threat information.
WordPress.com search page for finding public posts, blogs, and topics across WordPress sites.
Xapian is an open source search engine library released under the GPL v2+ and written in C++, with bindings that allow use from Perl, Python, PHP, Java, Ruby and other languages. It is a toolkit that lets developers add indexing and search facilities to their own applications, with built-in support for multiple weighting model families and boolean query operators. Omega is a supplied search application built on Xapian.
XDCC.EU is an XDCC search engine that lets users search through a variety of packs. Users can contact the site to add a network or bots, and network statistics are available. Search tips note that a space can serve as a wildcard and the minus operator can exclude terms from results.
Yareta is a platform for archiving research data that serves as the consultation and archive portal for Geneva's institutions of higher learning. It allows users to create deposits to archive their data, search for archives, and search for publications in public or private archives. The platform is funded and developed by the University of Geneva's DLCM, with version 3.1 available as of the snapshot.
Microsoft tool for monitoring website search performance, indexing status, and SEO insights.
GoodGopher.com is a search engine that provides two submission forms: one for website indexing requests and one for petition indexing requests. Website indexing submissions require a submitter’s URL, webmaster email and security code, while petition submissions require a petition title, URL, description and security code.
