Video search engine for finding videos across multiple platforms and independent video sources.
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Qdrant is an open-source vector search engine written in Rust, providing fast and scalable vector similarity search with a convenient API. It supports metadata filters stored in JSON, hybrid search combining dense and sparse vectors, and multivector retrieval. It is available as the Qdrant Vector Search Engine, Qdrant Cloud, and Qdrant Hybrid Cloud.
RaveBSD is a self-hosted, free and open source search engine for free book and audiobook sources. It merges results from multiple sources into one ranked list, downloads files to the user's server, names and shelves books, and saves copies to devices.
Searx Index is a search instance or metasearch resource for private web discovery.
searx.space is a directory of online and offline SearXNG instances. The site lists 70 currently online SearXNG instances, and tracks instance status including offline, connection timed out, HTTP client and server errors. For each listed instance, it displays details such as URL, software version, TLS configuration, security scores, certificate information, IPv6 support, country, associated network, search response times and uptime. Users can submit requests to add or remove instances via GitHub issues, and can filter out networks with known privacy issues.
Metasearch engine for finding web results, images, videos, and news from multiple providers.
Science.gov is a gateway to government science information from U.S. Government science agencies. It provides access to millions of authoritative scientific research results, including research and development outputs. Users can search across multiple databases, view results ranked by relevance, and access bibliographic citations, abstracts, and often full-text documents. Advanced search allows field-specific queries and source filtering. Format tabs and result actions such as download, print, and email are available.
TechURLs is a technology news aggregator that lets users read tech news from popular tech websites in one place and choose which sites to search from. It supports search operators for titles and URLs, and lists personal preferences, customized RSS feeds and an interval search filter as upcoming features.
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.
Agentset.ai is an open-source platform for building AI chat and search applications. It provides production-grade retrieval-augmented generation (RAG) capabilities without requiring specialized RAG expertise, and includes features such as multimodal support, automatic source citations, metadata filtering, support for over 22 file formats, and JavaScript and Python SDKs.
Monocles mail is a secure and open source e-mail client for Android, described as a fork of K-9 mail that keeps the known functions of K-9 mail with some UI updates. It supports multiple accounts, a unified inbox, local and server-side search, and OpenPGP email encryption. The source states it is privacy-friendly, with no tracking and only connecting to the user's email provider.
AllYouCanRead.com is a guide to magazines, newspapers and news sites, with listings for about 25,000 publications from over 200 countries. Listings are categorized by country and subcategorized by topic, such as art, business or travel. Basic and advanced search engines can search publications by name, keyword, category or location. Integrated subscription offers are also listed.
Double Commander is a free cross platform open source file manager with two panels side by side. It is inspired by Total Commander and includes an internal text editor, a file viewer for hex, binary or text formats, archive handling, extended search with full text search, and support for Total Commander plug-ins. It offers FTP, FTPS, FTPES, SSH+SCP and SFTP protocols support, a multi-rename tool and a tabbed interface.
Google Newspaper Search collects or organizes headlines and links for browsing news from multiple sources.
MathURLs is a mathematics news aggregator that collects math news from popular math websites in one place. Users can choose sites to search from. Personal preferences, including keyword highlighting, filtering, pinned articles, push notifications and customized RSS feeds, are listed as upcoming features. Search supports operators such as AND, OR, NOT and prefix wildcards.
A decentralized search engine and automated press review tool shaped as a WebExtension browser addon. Searches are keyword driven with selectable sources, and searches can be scheduled and exported. The search and sort job is handled by the extension on the user's computer, with no central server involved.
Twelve Labs provides an enterprise video intelligence platform and API powered by multimodal artificial intelligence. The platform allows users to search, analyze, and understand video content across visual, audio, and language modalities, and can process large volumes of video data at high speed.
Alexandria Library is a search interface for a curated collection of articles. It sorts results by meaning rather than string matching, so multiple words should express intent. Folders are matched by exact string, and pasting a blog post URL finds related articles. Keyword filters include score, comments, and before/after Unix timestamps.
ClearML is an AI infrastructure platform organized in three layers. The Infrastructure Control Plane connects and manages GPU clusters across on-premises, cloud, and hybrid environments, with multi-tenancy, role-based access control, and billing. The AI Development Center provides a workbench for developing, training, and testing models. The GenAI App Engine deploys LLMs onto clusters, with ClearML handling networking, authentication, and security.
The Association of Religion Data Archives (ARDA) is a reference source for data and information on American and international religion, operating since 1997. It provides interactive reports, maps, timelines and datasets for more than 1,000 religious groups, dozens of religious families and multiple religious traditions. Resources include US Religion Census data, congregational membership reports with maps and trend charts, and religion demographics reports for specific US zip codes.
Audiolabs, formally the International Audio Laboratories Erlangen, is a joint research institution operated by Fraunhofer IIS and Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), founded in 2010. The organization conducts research in audio and multimedia technologies, with focus areas including audio coding, audio signal analysis, and perceptual spatial audio signal processing. It also hosts academic events including the International Symposium on the Internet of Sounds.
BookStack is a free, open-source, self-hosted platform for organising and storing information, positioned as simple wiki software. Content is organised into books, chapters and pages, with a WYSIWYG or Markdown editor, built-in diagrams.net drawing, search, configurable branding and multi-lingual support. It runs on PHP with the Laravel framework and MySQL.
CLP Calculus Textbooks offers free PDF and web-based calculus textbooks and problem books by Joel Feldman, Andrew Rechnitzer and Elyse Yeager. The set covers differential, integral, multivariable and vector calculus, and source files are listed.
NOAA's Coral Reef Conservation Program takes a multidisciplinary approach to managing and conserving coral reef ecosystems. It focuses on resilience-based management and covers topics such as land-based sources of pollution, disease and disturbance response, changing ocean conditions, sustainable fisheries, coral restoration, monitoring and social science.