numerical association rules applies AI to data analysis, extraction, visualization, or business intelligence.
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Nutritionix maintains a database of verified nutritional data. The full website is temporarily offline for upgrades, while the database and API remain available to registered partners. The project also offers a restaurant platform for publishing nutrition data and an app for browsing nutritional information.
NZB Index is a software download or discovery resource for apps, installers, releases, or tools.
NZBFinder is a software download or discovery resource for apps, installers, releases, or tools.
Nzbindex is a software download or discovery resource for apps, installers, releases, or tools.
NZBStars is a software download or discovery resource for apps, installers, releases, or tools.
Obsidian is a free and flexible note-taking app that stores notes privately on the user's device, including offline access. It supports links between notes, a graph view of relationships, Canvas for visual layout, and thousands of plugins and themes. Obsidian Sync provides end-to-end encrypted sync across devices, and Obsidian Publish turns notes into an online site. Optional add-on services are billed per user or site per month, billed annually.
Obsidian Mobile is a free mobile app for iOS and Android that brings Obsidian's desktop features to phones and tablets. It includes tabs, a command palette, plugins and custom hotkeys, and core plugins such as graph view work the same as on desktop. A customizable toolbar and touch-friendly gestures are included.
Obtainium is an Android app that installs and updates apps directly from their release pages and notifies users when new releases become available. It supports over a dozen source websites, including GitHub, GitLab, and F-Droid, with configurable filters and settings. A generic HTML source can be customized to find and extract APK info.
Occam's Razor applies AI to data analysis, extraction, visualization, or business intelligence.
Octave is a free music streaming app with millions of songs, synced word-by-word lyrics, no ads, offline playback, lossless and Dolby Atmos audio, AutoMix, listening parties, podcasts and playlist importing. The library follows the user's account across browser and iPhone.
Discover amazing ML apps made by the community.
OFA Records is a resource maintained by the Orthopedic Foundation for Animals that provides access to canine health information. It offers an advanced search function for health-tested dogs, along with options to order DNA tests, pay bills, and log in to user accounts. The site includes information on funded research, the organization’s DNA repository, guidance on interpreting OFA numbers, fee schedules, educational resources, publications, quarterly reports, policies, the Canine Health Information Center (CHIC) program, breed-specific data on conditions including hip dysplasia, elbow dysplasia, eye disease, cardiac disease, respiratory function, patellar luxation, thyroid issues, and DNA-based disease tests, disease statistics by breed, and health clinic applications.
Telegram link is a Telegram link for updates, app posts, files, or community notices.
OG Image Generator is a free web tool for creating open graph images, social media previews, and Twitter cards. It offers customizable templates, fonts, and optional app screenshot support, exporting images as 1200×630 PNG files.
OldUSe is a software download or discovery resource for apps, installers, releases, or tools.
OldVersion is a software download or discovery resource for apps, installers, releases, or tools.
OmniTools helps discover apps, SaaS products, no-signup tools, clones, or software alternatives.
one sec is a screen time management application that uses scientifically backed methods to help users reduce their screen time. It can limit social media use, block websites and apps, and interrupt scrolling habits to break the cycle of social media dopamine hits. The application’s approach has been studied in partnership with the Max Planck Institute and Heidelberg University.
Tor Project documentation portal for onion-service applications, standards and operator tools.
OnlineRadioBox is a directory and player for free internet radio stations from around the world. It organizes stations by region and country, supports searching by station name, genre or country, and lets users listen directly in a browser without installing software. It also offers a free mobile app for Android and iOS.
ONLYOFFICE is an open-source office suite providing document editing for text, spreadsheets, presentations, PDFs and fillable forms. It offers desktop and mobile apps, online editors, AI assistants for content generation and analysis, and connectors for integrating the editors into other platforms. It can run on a user's server or in the cloud.
OONI, the Open Observatory of Network Interference, is a global community measuring internet censorship. OONI Probe tests the blocking of websites and apps and measures network speed and performance, while OONI Explorer displays censorship data collected from over 200 countries since 2012.
OpenAlex is an open catalog of the global research system. It indexes half a billion scholarly works, including associated authors, institutions, sources, and topics. The data is freely available for search, analysis, and reuse through a web application, API, and bulk download.