CheckFileType is a free online tool that determines a file's true type, extension and MIME type from its contents rather than its extension. Users upload a file without registration, and the tool can look inside archives such as ZIP files to report the type of each contained file. Files are stored temporarily and removed after one hour.
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A collection of apps that scan and analyze chess diagrams from websites, ebooks, images and videos. It includes a Browser Extension, a Mobile App, an eBook Reader and a Library for saving and organizing positions. The Browser Extension scans chess diagrams in a browser and can add a Videos section to Chess.com analysis in Chrome. The eBook Reader opens PDF chess books and processes diagrams for analysis.
CHICKEN is a compiler for the Scheme programming language that produces portable and efficient C. It supports the R5RS and R7RS standards and many extensions, runs on Linux, OS X, Windows, and many Unix flavours, and is distributed free under the BSD License. Libraries and extensions are available at Eggs Unlimited.
Browser extension for eedlgdlajadkbbjoobobefphmfkcchfk, adding useful tools or workflow improvements inside the browser.
jehmdpemhgfgjblpkilmeoafmkhbckhi is a browser extension or add-on that improves everyday web browsing workflows.
Chrome Mask is an open source project with code, documentation, and setup resources for browser extensions.
Chrome Mask is a Firefox browser extension that lets users toggle a setting to make Firefox appear as Google Chrome to websites that block Firefox access. Unlike generic user agent spoofing extensions, it only applies the Chrome user agent to user-selected specific sites rather than all sites, and automatically updates the Chrome version it pretends to be.
Chrome Stats is a browser extension or add-on that improves everyday web browsing workflows.
Browser extension for Chrome Web Store, adding useful tools or workflow improvements inside the browser.
chromium-web-store is a GitHub-hosted browser tool project by NeverDecaf designed for use with ungoogled-chromium. It enables users to add extensions sourced from the official Chrome Web Store to the ungoogled-chromium browser, and also provides semi-automatic functionality for updating installed extensions.
Web Clipper is an open source browser extension for saving content from the web to a notebook platform. It reduces clutter by clipping only the article, recipe, or product information needed.
ColorFish is an open-source color picker and eyedropper browser extension from Ui.Vision for selecting color values from websites and from the desktop. It is available for Chrome, Firefox and Edge, and desktop color picking requires the separate Ui.Vision XModule app.
Consent O Matic is an open source project with code, documentation, and setup resources for browser extensions.
Consent-O-Matic is a browser extension that recognizes consent pop-ups from consent management providers and fills them out based on the user's preferences, attempting privacy-preserving settings where standard categories are absent. It is available for Chrome, Edge, Firefox and Safari on desktop, and Safari on mobile. The developers note some pop-ups may not yet be handled and offer a reporting mechanism.
Container Tab Groups is a Firefox browser extension that creates Chrome-style tab groups using Firefox's native private container tabs. It requires no additional configuration or other add-ons, and supports per-container overrides for preferred languages, user agent strings, and proxy settings. Users can create isolated container tab groups for separate tasks, and delete groups when finished to clear associated cookies and clutter.
Cookie-Editor is an open-source browser extension for creating, editing and deleting cookies for the current tab. It lists cookies on the current page, allows creating, editing and deleting cookies, and can import cookies or export them to the clipboard. It is available for Chrome, Firefox, Safari, Edge and Opera.
CRX Downloader is a Chrome extension downloader that downloads Chrome extensions as zip or crx files. The site says these files can be used with testing tools like selenium or to view the extensions' content.
A directory of repositories for CloudStream 3, an Android app, listing extensions and providers including Italian, German, Indonesian, Vietnamese, French, Hindi and English sources. The page warns that extensions can execute arbitrary code inside the app and read all of the app's data. The first repo is described as constantly audited by the app developers.
Custom Page Zoom is a browser extension or add-on that improves everyday web browsing workflows.
Custom Scrollbars is a browser extension or add-on that improves everyday web browsing workflows.
CustomRightClickMenu is an open source project with code, documentation, and setup resources for browser extensions.
Dark Reader is an open-source browser extension that enables a dark theme on websites for night and daily browsing. It is available for Chrome, Firefox, Edge and Safari, and its brightness, contrast and sepia settings can be adjusted and enabled for all sites or particular domains.
Darkreader is an open source project with code, documentation, and setup resources for browser extensions.
DeArrow is an open source browser extension that replaces titles and thumbnails on YouTube with community created versions. Titles can be any text, and thumbnails are screenshots from specific timestamps, submitted and voted on by users. When no submissions exist, the extension can format the original title and set a screenshot from a random timestamp as the thumbnail.