Nightwatch is an SEO rank tracking and AI visibility platform. It tracks rankings across 107,000+ locations and monitors citations in ChatGPT, Claude, Gemini and Perplexity. The tool combines search rank and AI citation data in one interface, with nightly refreshes. An agency version supports client management and white-label reports. Paid plans bill by keywords tracked with unlimited seats.
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Find digitized publications and collection items through an online library.
A page that checks the format and prefix rules of UK National Insurance numbers and provides sample NI numbers for testing forms. It explains how a NINO is built and states that NINOs have no check digit, so a correctly formatted number may never have been issued.
Nitrous is a native desktop app for motorsport live timing and streaming. It connects to Formula 1 data feeds and presents live timing, car telemetry, trackmap, race control messages and session replay. Basic live timing and telemetry work without a subscription; streaming features such as F1 TV or the Driver Tracker Track Map require an active F1 subscription linked to the account. The app runs on macOS, Linux and Windows.
Caspio database for searching New Jersey police and fire pension contribution records.
The National Library of Scotland (NLS) collects and preserves materials documenting Scotland's history and culture. It provides access to printed, moving image, digital, archive and manuscript collections, eResources and databases, and offers research support including a librarian query service.
NN Visual is an interactive web-based neural network visualizer. It lets users configure hidden layers, select datasets such as auto_mpg, iris, xor, or mnist, and train a network while observing forward and backpropagation step by step. The tool displays training loss, mean absolute error, weight distributions, and node activation brightness. Written explanations accompany the visualizations to teach concepts like gradient descent, weights, biases, and activation functions without requiring code.
No-Intro catalogs the best available copies of ROMs and digital games, providing DAT files for ROM managers and an online database. The site links to a wiki, forums and community channels.
Central library of the U.S. National Oceanic and Atmospheric Administration library network.
A National Centers for Environmental Information page presenting maps and geospatial products, including map viewers with data visualization tools and story maps combining maps, narrative text, images and multimedia. It also links to ArcGIS REST service directories for GIS servers with metadata and download formats for programmers and developers.
Noi is a desktop application that provides an interaction-focused browsing workflow. It offers multi-window management for parallel workspaces, session isolation, and local-first data storage for history, prompts, and settings. It also includes prompt management for AI chats, a built-in terminal, and a CLI for controlling Noi from tools such as Claude Code and Codex. Builds are listed for macOS, Windows, and Linux.
NonFungible Corporation is described as founded in 2018, providing NFT market analytics, consulting, reports, news, an academy and a glossary. The page presents its data and research as having been featured in media outlets and says it has worked with companies across industries.
Online library catalogue for Noosa Library Service.
NormCap is an OCR-powered screenshot tool that captures text instead of images. It uses Tesseract language models for text detection and supports QR and barcode scanning. Detection is performed on the device and no telemetry data is collected. It is available for Windows, macOS and Linux and is licensed under GPLv3.
NormConf is an online technology conference about topics in data and machine learning that do not receive prominent attention. The 2022 event was held on 15 December, was free to attend, and all talks were recorded and shared on YouTube.
Noroff University College offers study programs in cybersecurity, programming, applied data science and digital forensics. All studies are available as online studies and OnlinePLUS, and all lectures are streamed live. It describes hands-on digital education at university and university college level.
A digital collection of over 90,000 historic and recent photographs, state government publications, manuscripts, and other resources on North Carolina topics. It is free and full-text searchable, combining content from the State Archives of North Carolina and the Library of North Carolina.
Organization in North Rhine-Westphalia.
Northstar is a Titanfall 2 modding and custom server framework listed on Thunderstore, a mod database and API for downloading Titanfall 2: Northstar mods. The listing catalogs packages across categories such as client-side mods, custom menus, maps, models, server-side mods and skins.
Software for managing library collections.
Snapshot of English Wikipedia in December 2001.
Notepad is an offline-capable, minimalist progressive web app notepad that autosaves notes locally. It includes features such as dark mode, a writing timer, focus mode, full-screen mode and compatibility with Android and iOS mobile devices, and does not collect user data.
Notion is a collaborative workspace for capturing knowledge, finding answers across apps, and automating tasks. It offers block-based docs, databases, AI meeting notes, enterprise search across Notion, Slack, and Jira, and agents for team workflows. Features include wikis, teamspaces, real-time collaboration, data syncs, forms, imports, and mobile apps.
NotScare is a database of jumpscare timestamps for horror movies, series, and games. It lists exact timestamps and intensity ratings for more than 9,200 titles, along with trigger warnings. An iOS app provides real-time jumpscare alerts, and an Android version is listed as coming soon.