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Spark is a fast and general engine for large-scale data processing.
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fid-bau.de
Platform for information, networking, research and data exchange for the fields of construction engineering, architecture and urbanistics.
specx.pro
Specialized AI vision for extracting engineering specs from PDF/JPG to Excel.
spiral.imperial.ac.uk
Spiral is Imperial College London's institutional research repository built on DSpace-CRIS, a free open-source Research Information Management System. It enables secure, integrated, and interoperable management of research information and data, and supports key international standards for interoperability and data transfer. Users can deposit doctoral theses, master's dissertations, and publications via the platform. Imperial College London also operates the separate Helix repository for future research dataset deposits.
splash.trade
Splash Protocol is a decentralized trading protocol on Cardano. It offers a Temporal Liquidity Book that builds markets from multiple AMM liquidity pools and an order book, and composable orders executed by an execution engine. The protocol describes decentralized, permissionless automation and open-source smart contracts, plus SPLASH DAO governance through locked SPLASH tokens.
springboard.com
Springboard is an education technology company that offers online career tracks in data science, machine learning, artificial intelligence, cybersecurity, software engineering, and UX design. Its blog provides articles on certifications, skill building, and career planning. The platform also partners with employers to hire emerging talent and offers team upskilling solutions.
spritefusion.com
Sprite Fusion is an independent software company making tools for game development. Its tilemap editor is a free, web-based level design tool for crafting 2D tilemaps in the browser using any tileset, with auto-tiling, collisions and one-click exports to game engines. The company also offers a pixel art generator, a Pixel Snapper tool and an API.
anime.ameo.dev
Sprout is an interactive anime recommendation engine that uses a machine learning model to generate tailored recommendations based on watch history and ratings from MyAnimeList or AniList profiles. It also provides stats and visualizations of personal watch history and preferences, plus the Atlas Visualization. Sprout is fully open source.
github.com
GitHub list of Google custom search engines for OSINT, sourcing, and public web research.
research-portal.st-andrews.ac.uk
The University of St Andrews Research Portal provides access to the university's research, including articles, books, datasets and theses produced by its researchers. Full text is available online free of charge where available. The portal also presents research organized by UN Sustainable Development Goals and by collaborations and top research areas from the last five years.
stacksear.ch
Search engine for Stack Overflow answers, questions, code snippets, and developer discussions.
github.com
HizSearch Steam Button is an open-source browser extension and userscript that enables one-click searches for Steam games on the HizSearch game search engine. It operates on Steam Store and SteamDB app pages. The tool can be installed in the Steam Client browser, Chromium-based browsers, Firefox, or via userscript managers. Users can configure the button's position, icon visibility, and new-tab behavior, and the project is released under the MIT license.
github.com
A Blogging Engine and Platform written in Swift for use with the Vapor Framework
stevens.edu
Stevens Institute of Technology is a private research university based in Hoboken, New Jersey, with a campus situated across the river from New York City. It provides undergraduate, graduate and corporate professional education programs with a focus on STEM and technology fields, and its curriculum incorporates hands-on research and co-op experiences for students prior to graduation. The university also hosts campus tours, information sessions and various events for prospective students.
tcbmi.com
StrokeIt is a mouse gesture recognition engine and command processor for Windows. Users draw symbols on screen with the mouse and the program performs the action associated with a recognized gesture. It comes pretrained to recognize more than 80 unique mouse gestures. It is free for individual and not-for-profit charitable entity use.
subtitld.org
Subtitld is a free, open-source subtitle editor for Linux, Windows, macOS and Haiku. Users can time subtitles on the waveform, transcribe and translate with engines running on their own machine, and dub with synthetic voices. It opens video, subtitle or transcript files and saves to SRT, VTT, TTML and other formats.
supercollider.github.io
SuperCollider is a platform for audio synthesis and algorithmic composition, used by musicians, artists and researchers working with sound. It is free and open source software for Windows, MacOS and Linux. Its three main components are scsynth, a real-time audio engine implemented as a server; sclang, an interpreted programming language acting as a client; and scide, an editor for sclang.
supermemory.ai
Supermemory is a memory and continual learning engine for AI agents. It extracts and stores context from users and tasks in a vector-graph database, then injects prior memories into an agent's context. It is offered through an API, plugins, and MCP, and supports ingestion of text, URLs, documents, PDFs, Office and Google Workspace files, code, markdown, images, audio, and video.
github.com
Supermemory is a memory and context engine for AI that learns from conversations, extracts facts, builds user profiles, and delivers context. It includes hybrid search combining RAG and memory, connectors, and multi-modal extractors. It can be run fully locally.
github.com
Superpowers is an agentic skills framework and software development methodology for coding agents. It prompts the agent to clarify a specification, shows the design in chunks for sign-off, then builds an implementation plan emphasizing red/green TDD, YAGNI, and DRY. A subagent-driven-development process has agents work through engineering tasks and review their work. Skills trigger automatically.
suppr.wilddata.cn
AI literature search, document translation, and deep-research workspace for researchers.
surge-synthesizer.github.io
Surge XT is an open source hybrid synthesizer originally released in 2005 and previously sold commercially as Surge by Vember Audio. It combines subtractive synthesis with oscillators, filters, a modulation engine and effects, and supports MPE, microtuning and OSC.
svgfast.com
SVGFast converts PNG and JPG images into SVG vectors. It offers unlimited conversions without sign-up and free API access during the beta after signing in with Google or GitHub. The API returns optimized SVG from the same engine, with keys sent in an authentication header.
swissubase.ch
SWISSUbase is a national, cross-disciplinary research data service offering a free platform for archiving, publishing and disseminating research data and metadata. It provides multilingual, discipline-specific metadata along with expert curation, secure Swiss hosting and personalised support across social sciences, linguistics and other disciplines.