NativShark is a Japanese learning platform built around a two-step study flow: log in and press Study Now. It teaches writing systems, vocabulary, listening and grammar, with native-speaker-written lessons, spaced repetition flashcards, native dialogues and conjugation drills. The site lists monthly and annual subscription options and states a free signup without credit card.
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neko (stylized as n.eko) is a self-hosted virtual browser that runs in Docker using WebRTC technology. It supports use cases including watch parties, interactive presentations, collaborative work, teaching, content embedding, automated browsing, ultra-low-latency streaming, multi-participant control, and live broadcasting.
NetBird is an open-source platform combining a WireGuard-based overlay network with Zero Trust Network Access for secure connectivity. It offers secure remote access, zero-configuration deployment, SSO with MFA, dynamic posture checks, centralized network management and detailed activity logging. The platform is positioned as a replacement for legacy VPNs, connecting remote users, hybrid-cloud and edge environments. Pricing lists Free, Team, Business and Enterprise plans.
Supports teaching, studying or skills practice with AI-guided learning tools.
Neural Networks and Deep Learning is a free online book by Michael Nielsen. It teaches core concepts of neural networks and deep learning, covering handwriting recognition, backpropagation, and improving how neural networks learn. The work is licensed for copying and sharing but not for selling.
New Jersey Digital Highway is an online portal for New Jersey culture and history, drawing on collections from cultural heritage institutions. It provides searchable digital collections, exhibits on topics such as Chinese immigration and Seabrook Farms, digital maps, an environmental digital library, a peer-reviewed studies journal, and resources for students and teachers.
News as Facts presents important global news as concise, unbiased facts. Its content is retrieved from the English Wikipedia, and the site describes itself as ad-free and privacy respecting. It is run by a husband and wife team in Boston, Massachusetts.
Nexdata is a data service and annotation platform offering services including annotation, fine-tuning, RLHF, red teaming, in-cabin sensing datasets, LiDAR data labeling, and LLM annotation. It provides a human-computer interaction semi-automatic annotation platform with flexible deployment options for public cloud or privatized deployment, and multi-level quality inspections.
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.
A TorrentFreak article reporting that ReVanced, an open-source project providing patches for various Android applications, removed its Spotify Premium workaround after receiving a takedown notice from Spotify. The team complied to avoid escalation while disagreeing with the claim, and is seeking legal advice and consulting GitHub about a possible response.
NoDesk is a remote job board where users browse and apply to remote job listings at remote companies and startups for free. It also lets companies post jobs and build remote teams, and provides information about remote work.
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.
A website presenting documents and evidence about the October 7 attack, including operation orders, captured maps, and manuals. Sections cover Hamas's background, exploitation of civilian infrastructure, and documentation of the massacre by security forces, rescue teams, and press.
Ollama is a tool for running and building with open AI models locally or in the cloud on macOS, Windows and Linux. Its pricing page lists Free, Pro, Max, Team and Enterprise subscription plans, with paid plans including usage credits and cloud model access. The Free plan includes running models locally and starter usage credits.
Load-balancing system for resilient Tor onion services, documented by the Tor onion-services team.
Onyx is an enterprise platform that connects to organizational knowledge sources to provide humans and AI agents with accurate, fast, and token-efficient context. It supports more than 50 connectors, works with any AI model, offers white-glove support, and is used by over 1,000 teams handling 1 million or more weekly queries.
Open Data Minneapolis is a platform that enables users to create custom initiatives by combining existing applications with a custom site. These initiatives can be used to form teams focused on specific problems and invite community participation.
OpenRouterTeam is the GitHub organization behind OpenRouter, described as a unified interface for LLMs. The organization publishes open source SDKs for TypeScript, Python and Go, plus agent tooling, and maintains the Mintlify-hosted documentation repository for openrouter.ai/docs.
Educational framework exploring ergonomic, lightweight multi-agent orchestration. Managed by OpenAI Solution team.
OpenFOAM is free, open source computational fluid dynamics software written in C++, owned by the OpenFOAM Foundation and distributed under the General Public Licence. It calculates fluid motion and forces, heat transfer, thermodynamics and chemistry in fluids and solids. It is produced by the core maintenance team at CFD Direct and is used in industry, government research and academia.
OpenFront Wiki is the official community wiki for OpenFront, described as an open-source, browser-based real-time strategy game. The wiki covers guides, game mechanics and updates, including wiki pages on settings, combat, gold, bots, nations and buildings, and featured beginner and team game guides.
OpenIntro is a registered 501(c)(3) nonprofit that develops free, transparent educational products intended to lower barriers to education. It publishes statistics and mathematics textbooks, with a free PDF version of each textbook and affordable print editions, plus supporting resources such as slides and videos. Verified teachers can request desk copies and access statistics textbook solutions and sample exams.
OpenList is a community-driven fork of AList, described as a resilient, long-term governance fork built to defend open source against trust-based attacks. It is maintained by the OpenList Team under the AGPL-3.0 license. The project states that there are currently no paid plans or commercial deployments and that use of existing features does not involve any costs.
oPhysics is a collection of interactive physics simulations created by retired physics teacher Tom Walsh. Most animations and simulations were made with GeoGebra software. The site states it is a work in progress and content is added as time allows. Material may be used for non-profit educational purposes.