rEFInd is a boot manager for computers based on EFI and UEFI, presenting a menu of boot options at startup. It is a fork of the rEFIT boot manager and expands on its capabilities, including direct launching of Linux kernels and support for Secure Boot. It is not a boot loader.
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RIP Linkvertise is a browser-based bypasser for ad-shortened links. A Linkvertise, Work.ink, AdMaven, Lootlabs or LockR URL is pasted into a field, the redirect chain is traced, and the final destination URL is returned. It requires no extension, account or captcha, and also supports changing .com to .lol in Linkvertise URLs.
RSSOwl is a free, cross-platform application for reading, organizing, and searching RSS, RDF, and Atom news feeds. It provides capabilities including automated news filtering based on custom conditions, instant search, saved searches, news notifications, bins for storing relevant entries, and keyword labels for feed items. The software is available for Windows, Mac OS X, and Linux, and requires the Java Runtime Environment to operate.
Subtitle resource from RussianFilmHub, covering caption files, languages, and release matching.
SADAR is the Sachsen-Anhalt Data Archive and Repository, a service of the University and State Library of Saxony-Anhalt at Martin Luther University Halle-Wittenberg. It allows digital objects and research data to be published, searched and archived, and runs on DSpace, which captures, distributes and preserves digital research products such as articles, preprints, reports, conference papers and data sets.
ScholarWorks is a collection of services to capture and showcase scholarly output by the Boise State University community. It makes documents, files and other scholarship available online and offers SelectedWorks pages, usage reports, electronic publishing of series, journals and monographs, and a searchable database. It includes theses, dissertations, an experts portal, an author bibliography, publications, conference materials and data sets.
Scientific Data Repository is an interactive online data repository that provides real-time visual analytics and interactive data mining and exploration capabilities. It hosts hundreds of datasets across categories including bioinformatics, educational, healthcare, and miscellaneous data, with features such as node and link manipulation, automatic graph layouts, and export of graphs, data, and statistics.
Screenshot Guru is an online tool that captures full-length, high-resolution PNG screenshots of web pages and tweets without screen-capture software or browser extensions. It works on desktop and mobile devices. Pages requiring login, Flash embeds and AJAX-based sites cannot be captured.
ScreenshotX is a free Windows screenshot and snipping tool for capturing area or window snips. It automatically centers content on detected solid backgrounds, adds backgrounds, blurs sensitive details, and offers one-click sharing that produces a public link without an account. Shared screenshots are removed automatically after 30 days. The 3.0 MB app supports Windows 11, 10, 8 and 7.
The SEAL LLM Leaderboard is a resource from Scale Labs that provides expert-driven benchmarks and updated rankings for large language models. It evaluates capabilities including agentic coding, frontier reasoning, and safety alignment, with over 20 benchmarks and assessments of more than 100 models from leading AI labs and open-source contributors.
This is a Moz educational guide explaining Google search operators, which are special characters and commands that extend the capabilities of standard Google text searches. The guide lists 62 advanced search operators, categorizes them by functionality status, outlines SEO and content research use cases, and provides example search strings for each operator.
SearchTweaks is a website offering tools to improve web search experiences, specifically enhancing Google search functionality. Its tools are organized into four categories: Query Builders, News-Related Search, Time-Related Search and Search Utilities. Some tools simplify existing Google features, while others add new search capabilities. The site requires JavaScript to function, is designed for desktop use, and does not rely on the Google API or web scraping. It uses Simple Analytics for privacy-focused usage tracking.
A website that uses a Proof of Work check in place of a CAPTCHA to screen out bots and malicious requests. The browser solves a calculation task in a few seconds before access is granted. The check requires modern JavaScript features that plugins such as JShelter disable.
SecLists.Org is a security mailing list archive providing web archives and RSS feeds for lists including Nmap Development, Bugtraq, Full Disclosure, Security Basics and Pen-test. It offers search capabilities and RSS feeds with message extracts, updated in real time.
The Intercept catalogue of surveillance technology, vendors, capabilities, and related documents.
The Senckenberg (meta)data portal is a data catalog that hosts 389 datasets and data from 67 organizations. It supports dataset search, with popular tags including savanna licor 6400 measurements and photosynthetic capacity data. The portal includes a collection of datasets related to the Nagoya Protocol, provides taxonomic classification overviews, and is available in English and German, powered by the CKAN platform.
Seterra is a free map quiz site offering over 400 quizzes that cover countries, capitals, flags, cities, rivers, mountains and other geography topics. The site also offers quizzes on anatomy and science, and printable downloads for educators. It can be played on mobile devices.
ShareX is a free and open source screenshot tool for Windows that captures or records any area of the screen and shares it with a single key press. It includes screen capture, screen recording, file sharing and productivity features, and supports uploading to many destinations.
Shodhganga is a repository maintained by the INFLIBNET Centre for Indian Ph.D. theses. It captures, indexes, stores, disseminates and preserves electronic theses and dissertations submitted by researchers, making them available through open access. Regional language translation support is in a testing phase. Membership is not offered to colleges.
ShortsKit.ai is an AI video creation platform that turns text into short-form videos with AI visuals, voiceovers and synced captions for YouTube Shorts, TikTok and Instagram Reels. Users describe a video, generate and edit clips, then export. Plans are billed per month with credits: Hobby at $15/month, Pro at $39/month and Ultra at $159/month.
Skills is a directory for discovering and installing skills for AI agents. Skills are reusable capabilities that provide procedural knowledge helping agents accomplish specific tasks more effectively. Installation uses a skills CLI command, and the leaderboard ranks skills based on anonymous telemetry data collected from that CLI.
Slangit is a slang dictionary service accessible via its website and mobile apps. It provides definitions for thousands of slang terms, acronyms, and abbreviations, with daily updated entries, a term of the day feature, and free offline-capable apps for Android and iOS.
SmartLnks is a free secure smart link generator and URL shortener. The platform offers link creation and targeting features, a browser extension, link scanning, preview and analytics tools, and is marketed as a solution for maximizing link clicks and capturing conversions.
Snyk is an AI security platform that secures the code AI writes, the agents it runs, and the applications it builds. It offers a developer security solution available for free or from $25/month. The platform subscription is available to small teams at a flat rate, while enterprise pricing uses prepaid credits rated per capability.