DNSViz is a tool for visualizing the status of a DNS zone. It was designed to help understand and troubleshoot deployment of the DNS Security Extensions, providing a visual analysis of the DNSSEC authentication chain and resolution path and listing configuration errors it detects.
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Docmost is an open-source, self-hosted collaborative wiki and documentation tool presented as an alternative to Notion and Confluence. It offers real-time collaborative editing, team spaces with permissions, comments, page history, public sharing, nested navigation and diagramming tools. An optional enterprise edition adds SSO, AI and API access. It can run in air-gapped environments with no external dependencies.
Documentation for Hermes Agent, a self-improving AI agent built by Nous Research. It describes a learning loop that creates skills from experience, improves them during use and remembers across sessions. The docs cover installation, context files, the memory and skills systems, voice mode, and connecting external tool servers via MCP.
Free AI Domain Generator turns a project description into suggested domain names. Users enter a project topic and can choose style, length, topic options, quantity and domain extension. The tool checks live registrar data to filter out taken domains and compares live registration prices across providers including Namecheap, Porkbun and Dynadot.
DomainTyper is an instant domain name search tool that helps users find available domain names. It searches as you type, supports every extension, and provides alternative suggestions when a domain is already registered.
Dot is described as an AI data analyst that answers data questions, with chat, root cause analysis, automated reports and a context agent. Users can ask through Slack, Teams, email or the app, and answers show their queries and sources. A free tier offers 300 one-time credits.
Cloud-based software that converts webpages into e-books for e-readers. It is offered as a bookmarklet, browser extensions for Chrome, Firefox, Safari and Edge, a widget and an API. A Creator tool makes e-books from a text of one's own, and a WordPress plugin embeds the widget.
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.
A browser extension that finds and saves images displayed on the current tab. A toolbar button opens an image-filtering tool that filters by dimensions, image type, size in bytes and URL, with custom regular expressions for advanced filtering. It detects images loaded on the page, referenced in links, included in text, or used as CSS backgrounds, and supports deep searching of linked pages.
This page describes a universal online downloader for Tencent/QQ video, intended to analyze original video URLs from v.qq.com and return video URLs. It also documents a corresponding API and a Chrome extension for extracting video URLs.
Downloader.la is a web-based suite of media downloader tools. It offers separate tools for saving video, audio and images, including high-resolution video and MP3 audio extraction. It requires no account creation, email registration or app installation.
DownSub is a free online subtitle downloader that extracts subtitles from YouTube, Viki, Viu, WeTV, iQiyi, Hotstar, Dailymotion and other video sites. It produces SRT, VTT and TXT formats. Users paste a video link and click download, without installing extensions or software.
DownThemAll is a browser extension that adds advanced download capabilities, letting users download links or images on a website and refine downloads with customizable filters. It allows queuing, pausing and resuming downloads and is integrated into the browser.
dplyr is an R package providing a grammar of data manipulation with a consistent set of verbs, including mutate(), select(), filter(), summarise() and arrange(), which combine with group_by(). It is designed to abstract over how data is stored, so the same R code works with local data frames and remote database tables via the dbplyr package.
A Java scientific and numerical library written by Michael Thomas Flanagan to support his research and undergraduate programming courses. It is distributed as the flanagan.jar package and includes general classes, example programs and arbitrary precision methods. The author has retired and states it will be updated less frequently. Commercial use, public listing of source codes and redistribution are not permitted.
Dreamwidth Studios is a blog and journal system for writers, artists, and other creators, with fine-grained privacy controls and topic communities. It is described as an independent, Open Source, community-centric service. A basic account is free, and a paid account offers extra features.
Drift is a self-hostable clone of GitHub Gist that provides a simple way to save and share code and text snippets. It supports rendering GitHub Extended Markdown, user authentication, private, public and password protected posts, syntax highlighting and language detection, and drag-and-drop file uploading.
Driftz Mail is an email utility for inbox management, privacy, aliases, extraction, or temporary mail.
DrivenData hosts online machine learning competitions with social impact and works with mission-driven organizations on data science and engineering projects. It also maintains open-source projects for the data science community and shares prize-winning solutions from past competitions on GitHub. Areas of work include public health, conservation and international development.
DropMail is an email utility for inbox management, privacy, aliases, extraction, or temporary mail.
dygraphs is a fast, flexible open source JavaScript charting library that allows users to explore and interpret dense data sets. Charts are interactive, with zoom, pan and mouseover available by default, and the library handles very large data sets. It works in all recent browsers.
e-codices is a virtual manuscript library of Switzerland whose goal is free access to all medieval and a selection of modern manuscripts of Switzerland. Complete digital reproductions are linked with scholarly descriptions. The site currently contains 3107 manuscripts from 100 different collections and is to be continuously updated and extended.
Easy Screenshot is a browser extension that captures screens. From its popup, users can capture the entire screen, the currently visible area, or a specific portion. Screenshots can be saved to disk or the clipboard, opened in an online editor, or handled in a chosen combination of these actions. It uses PNG format at maximum resolution and accounts for the screen's device pixel ratio.
Easy Open Link is a small Android app that opens links from text documents through the share function of many apps, avoiding copy and paste. It can open several links at once from a rough selection that may include extra text or white spaces. The software is licensed under GPL v3 and APKs are available from the project's releases page.