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UFO Evidence is a website presenting research, resources, news and information on the UFO phenomenon. It includes sections on selected UFO cases, photographs, sighting reports, and articles on topics related to the UFO and extraterrestrial phenomenon. The site describes itself as one of the largest internet sites on the subject.
Ui.Vision RPA is an open-source browser and desktop automation tool for building reusable macros. It offers web automation, desktop automation, web scraping, UI testing and test automation, using visual recording, Selenium-style commands or a JavaScript API. The V10 release adds an AI macro assistant and an MCP bridge for connecting AI assistants. The browser extension is available for Chrome, Edge and Firefox.
ujeb link helps open, check, secure, monitor, or manage URLs and website links.
UNdata is an internet-based United Nations data service that aggregates UN statistical databases into a single entry point at http://data.un.org/. It allows users to search and download a range of statistical resources from the UN system. The service hosts 32 databases containing 60 million records, covering topics including population, national accounts, education, and labour market statistics, with datasets available for download in PDF and CSV formats.
Browser tool that helps find legal open-access versions of scholarly papers and research articles.
Unshorten.It! is a web service that expands shortened URLs, showing the destination URL, description, safety ratings, screenshots and blacklist checks. Its API is no longer supported and new API key registrations are not accepted; it continues to operate for current users, who are advised to migrate away.
Unshorten.me is a free service that un-shortens URLs created by shortening services such as goo.gl, fb.me, t.co, bit.ly, TinyURL and ow.ly. Paid plans add API request allowances with customer support and secure data.
Update Scanner is a Firefox addon that monitors web pages for updates, intended for websites that do not provide Atom or RSS feeds. Users can add pages, choose how often changes are checked, and opt to ignore minor updates. Detected changes appear in a notification panel and highlighted in yellow, and updated items are listed in a sidebar.
UpDownToday checks website availability, outages, broken links, or service status from the web.
URL Expander expands shortened links and reveals redirect destinations before you open them.
Url Shortener is an open source link or URL tool for shortening, managing, or working with web links.
urlwatch is a tool that monitors webpages and notifies users when they change, via e-mail, in the terminal or through third party services. Notifications include the changed URL and a summary of the change. It uses YAML-based configuration and concurrent downloads, and can send changes via e-mail, Telegram, Slack and Pushover.
UrTempMail provides temporary or disposable email addresses for quick signups and inbox testing.
Use plain text email is a guide explaining plain text and HTML email, recommending email clients that compose plain text by default and giving setup instructions for other clients. It also covers etiquette recommendations and reasons to prefer plain text, and is brought to you by sourcehut.
A browser extension that modifies the browser's User-Agent string, related Client Hints headers and the navigator.userAgentData object. It can apply custom or randomized User-Agent strings per tab or hostname and deactivates when the default string is used.
User Scanner is a two-in-one email and username OSINT suite with native MCP support. It performs deep data extraction from a single email or username, analyzing over 1080 maintained scan vectors, including more than 200 email and 880 username sources. It is intended for security research, investigations, and digital footprinting.
UserStyles.world is a free and open-source, community-driven platform for sharing and browsing UserCSS userstyles, described as a replacement for UserStyles.org. It offers tracker-free browsing, Stylus integration for publishing updates, and mirroring of userstyles from other places including the USo-archive. It is licensed under AGPLv3.
User-Agent String Switcher is a Firefox browser extension that spoofs the browser's user-agent string to prevent websites from collecting information about the user's browser type, operating system, and browsing configuration, allowing users to receive preferred site content. It allows custom user-agent strings to be set via the toolbar popup, uses a two-factor technique to replicate the default user-agent string for reliability, and consumes no resources when not actively spoofing. A common use case is setting a mobile user-agent string to load faster-loading mobile versions of websites.
UserScript is a repository of userscripts for the Tampermonkey script manager, covering enhancements and beautification for sites such as Zhihu, V2EX, 3DM and DuckDuckGo. The scripts were tested in Chrome, Firefox and Edge with Tampermonkey.
u.user.js helps open, check, secure, monitor, or manage URLs and website links.
A userscript for bypass.city that is installed through a browser userscript extension. The page provides installation instructions for Chrome, Firefox, Edge, Safari, iOS and Android, and the script is intended to speed up bypassing links from services such as Linkvertise.
userscript is an open source project with code, documentation, and setup resources for URL tools.
Userscript-Plus is a browser extension, forked from jae-jae/Userscript-Plus, that finds available UserScripts and UserStyles for the current webpage. It is also distributed as a UserScript, which the documentation says only works on HTTPS sites. Queries can come from Greasy Fork and optionally other sources.
Userscript.zone is a search platform for userscripts. It lets users search through a collection of frequently used userscripts, and provides tools to filter results, including options to show scripts with broad host permissions. The site also offers guidance on how to install userscripts, a feedback option, and pages for privacy policy, cookie settings, and site imprint.
