Shortkeys is a free and open source browser extension for Chrome and Firefox that lets users customize keyboard shortcuts. It provides over 100 built-in actions covering tab management, scrolling, navigation, zoom, bookmarks, downloads and video controls, along with custom JavaScript actions, shortcut packs, groups, macros, a shortcut recorder and cloud sync.
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Sink It is a free browser extension that modifies the web versions of Reddit, YouTube, Twitter/X and Google search. For Reddit it adds comment navigation, adaptive dark mode and double-click upvoting, and removes app banners, buttons and ads. The YouTube and Twitter/X extensions are described as coming soon to the App Store.
SiYuan is an open-source, local-first, privacy-first note-taking app. It offers Markdown, block references, bidirectional links, databases, and multi-device sync for personal knowledge management. Content is organized at the block level, with built-in block-level and span-level elements, and blocks support zoom-in focus with breadcrumb navigation. A free tier includes local storage; PRO features require a one-time purchase and third-party sync services.
Sourcebot is a self-hosted tool that helps human users and coding agents search, navigate, and understand complex enterprise codebases. It provides fast code search across all repositories and branches, AI-powered Q&A that references code and connected external tools, and a code context layer for agents. It is deployed via a single Docker container on user-managed infrastructure, with free Basic, paid Pro, and custom Enterprise pricing plans available.
A categorized grouping of subreddits, organized by topic such as science, programming, technology, art, literature, news, gaming, music and entertainment. The page lists subreddit names under these categories and includes navigation for search, sorter, music, about, data and contact.
Surfingkeys is a browser extension for Chrome, Chromium-based browsers, Firefox and Safari that provides keyboard-based navigation and control of the web in the spirit of the VIM editor. It is intended for users who need more shortcuts for their own functions, and its settings are described in JavaScript, allowing keystrokes to be mapped to user-defined JavaScript functions.
Tab Auto Refresh helps manage browser tabs, sessions, navigation, or tab-related workflows.
Temporary Containers is a Firefox browser extension that opens tabs, websites, and links in automatically managed disposable containers. These containers isolate website-stored data including cookies and local storage from each other to enhance user privacy and security while browsing. It supports fully automatic operation based on navigation targets, configuration for specific websites, activation via configured mouse clicks or the toolbar icon, and automatic deletion of history, cookies, and scripts after use. The extension is free and open source.
Terminal CSS is described as a modern and minimal CSS framework for terminal lovers. The site documents themes, contributors, components, a grid system, navigation, lists, typography, tables and special elements. It has no built-in grid system; users can create their own with Flexbox or CSS Grid.
TermOne Plus is an Android terminal emulator that turns an Android device into a computer terminal for accessing a command line shell and running command line utilities. It is an open source project under Apache License 2.0 and the successor of Jack Palevich's Terminal Emulator for Android. Features include multiple windows, a navigation drawer, launcher shortcuts, UTF-8 console, and VT-100 emulation.
The AI Risk Repository is an MIT AI Risk Initiative project that provides authoritative data and frameworks to identify, prioritize, and manage AI risks. Its tools include a risk navigator, a living repository of AI risks, an incidents database, and a mapping of global AI laws to risk domains.
The Whole Brain Atlas presents neuroimaging material from Harvard Medical School, including lecture notes on an introduction to neuroimaging, normal anatomy in 3-D with MRI/PET, and images of cerebrovascular disease, neoplastic disease, degenerative disease, and inflammatory or infectious disease. Help pages cover disclaimers, navigator instructions, MR imaging, SPECT imaging, and image superposition.
The Theban Mapping Project is a website about the Valley of the Kings, presenting the royal necropolis of the New Kingdom. It also covers the Valley of the Queens and Western Wadis and the dig houses of the West Bank built for Egyptologists, institutes, universities, and projects working there. The site offers guidance for visitors navigating the Theban Necropolis and its tombs.
TinyBones is a minimal blog template built with Astro. It provides a clean foundation with no frameworks installed by default and uses Tailwind CSS and Markdown for lightweight pages. It includes dark and light mode support, keyboard navigation, semantic HTML, a sitemap, an RSS feed, and Open Graph protocol support.
Trail Sense is an open-source Android application that uses a phone's built-in sensors to assist with wilderness treks and survival situations. It is designed for fully offline use, and includes tools for hiking, camping, navigation, weather forecasting, and survival support.
An interactive Unicode symbol table that provides code values for HTML and supports searching and copying characters by navigating a grid. The table is described as showing values up to 99,999.
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.
Vandal is a browser extension that serves as a navigator for the Web Archive, helping users move back in time without leaving the current tab. It is built on the Wayback Machine API and offers calendar and graph views, a built-in browser for archived snapshots, navigation history, a resource drawer and a beta historical view. Limitations include iframe restrictions on some websites and no support for saving pages.
Vimium is a browser extension providing keyboard shortcuts for navigation and control in the spirit of the Vim editor. It is available for Chrome, Edge and Firefox. The shortcuts support scrolling, following links, manipulating tabs, navigating history, copying the current URL, and opening URLs, bookmarks or history entries through the vomnibar. Keyboard shortcuts can be customized, and an in-page help dialog shows personalized shortcuts.
Virgilio is an open-source data science e-learning initiative that provides guides organized in three levels: Paradiso, Purgatorio and Inferno. It aims to help people self-start as practitioners and navigate available resources.
The Virus Encyclopedia is a Wikidot wiki that anyone can edit, currently holding hundreds of entries about computer viruses and worms. It covers viruses, worms and related malware, with pages on individual threats and groups, plus help pages about entry layout and wiki syntax. A featured entry describes the Navidad mass-mailer worm.
A family research blog on navies and merchant shipping from 1500 to the present. The authors photograph, draw and research archives, literature and the web, sharing information without commercial intent. Posts cover whaling history, individual ships and naval commissions.
Wave Terminal is an open-source terminal that integrates file previews, file editing, AI, web browsing and workspace organization, available for macOS, Linux and Windows. It offers features including an SSH connection manager with WSL support, split screen layouts, remote file navigation and editing, an inline web browser, and built-in graphical widgets for creating dashboards.
Webcomic Reader is a userscript that can work on almost any webcomic or manga page. It preloads 5 or more pages ahead or behind, navigates via ajax for instant page changes, and lets users use the keyboard. It remembers progress, and new sites are relatively easy to add.