Directory
Published directory entries matching your search.
The Sloan Digital Sky Survey-V is a spectroscopic survey providing multi-epoch optical and infrared spectroscopy across the entire sky and integral-field coverage of the Milky Way and Local Volume galaxies. Its DR20 data release contains spectra and data products from the Black Hole Mapper and Milky Way Mapper, plus Local Volume Mapper preview tiles. Previous SDSS-I-IV data releases remain available.
Snowday is an education platform that aggregates learning and extracurricular opportunities for U.S. high school students. It hosts a searchable database of over 2,100 programs, including summer, school-year, and competition options, with AI-powered filtering by location, date, and cost, plus curated expert lists and user-submitted reviews.
SoBrief offers free reading of summaries of fiction and non-fiction books, plus audio summaries in 40 languages. A Pro subscription with a 3 day free trial provides listening to full summaries, saving bookmarks and history, and downloads; free users have monthly reading and item limits.
SolutionArchive is a site documenting adventure games, with browse options by publisher, system, platform, year, genre and language, plus an advanced search. It publishes solutions, maps, hints and reviews, and hosts a forum, news archive and emulator links.
Soundful is an AI music platform for generating royalty-free tracks and loops. Users select a genre and template, with a human-aided AI producing unique tracks. Plans include Free, Plus, Pro, Business and Enterprise, with track downloads varying by plan.
SpiderSuite is a web crawling and security testing platform for security professionals, penetration testers and researchers. It offers specialized crawlers, traffic interception, request crafting and fuzzing, along with source and graph views of crawl data, plus import and export in formats such as HAR, WARC, CSV and JSON.
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.
SpriteSheep is a browser-based pixel art and sprite animation editor. It provides layers, frames, palettes and dithering tools, plus a tileset workflow, for building sprites and frame-by-frame animations without installation. The site labels it an alpha build in active development and free to use.
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.
Squirdle is a Pokémon-themed Wordle-like game in which players guess a Pokémon. It presents feedback through colored emoji for correct, incorrect and misplaced guesses, plus higher or lower indicators, and includes advanced filters for type and generation.
SSL For Free issues free SSL and wildcard certificates through ZeroSSL, including via ACME, a web app and a REST API. It offers paid Basic, Premium and Business packages with monthly or yearly billing, plus tutorials for installing certificates on various server and hosting platforms. Private keys are generated and encrypted on the user's device.
Stirling PDF is an open-source PDF editing platform that can run as a desktop app, in the browser or on self-hosted servers with a private API. It offers over 50 tools covering editing, merging, splitting, signing, redaction, conversion, OCR and compression, plus automation pipelines and REST APIs. The interface is available in 40+ languages.
sttr is a cross-platform command line application for running transformation operations on strings. It accepts direct input, file input, or input piped from other commands such as cat, curl and printf, and can write output to a file. Supported operations include encoding and decoding formats such as Base32, Base64 and Ascii85, plus hashing and JSON/YAML conversion.
StudyCraft is an open source, free study tool available for Windows, MacOS and Linux. It allows users to import study materials including PDFs, Markdown files, webpages and GitHub repositories, which are automatically indexed into a vector database for semantic search. Users can customize their imported content, and the tool automatically generates flashcard decks and practice tests, plus provides study session analytics to track progress. It supports self-hosted and cloud-hosted large language model integrations and is built for fast performance.
SVGStud.io is an AI-powered SVG generator and editor. It generates SVGs from textual descriptions and optional example images, refines them iteratively, and offers semantic search across a library of 127303 SVGs plus a gallery and in-browser editing. Generated SVGs are licensed under CC-BY-SA 4.0. Inputs are logged and generated SVGs are added to the public library.
Syntropia is software for delta-neutral DeFi trading strategies that includes real-time risk controls, automated 24/7 operation and monitoring with circuit breakers. It lists tranches described as low-risk senior, medium-risk mezzanine and high-risk junior, plus a custom strategy for institutions supplying $200k or more. The team describes its members as DeFi natives with experience in market making and yield farming.
TaskSlinger is a native Windows task manager replacement written in C and Win32 with a custom Direct3D UI. It offers process monitoring, performance graphs, services, startup apps and network connections, plus process module and token inspection, process dumping and search and filtering. The free beta runs on Windows 10/11 x64 and sends no telemetry.
The Mainnet Thai Blockchain Services Infrastructure Explorer is a BlockScout-based block explorer for the Mainnet network. It displays blocks, transactions, a gas tracker, daily transactions, average block time, total transactions, total blocks and wallet addresses. It provides API endpoints for developers transitioning applications from Etherscan to BlockScout, including account, token, block, contract and transaction modules, plus ETH RPC API methods.
TechnoBase.FM is a webradio and online radio station offering 24-hour live music. Its listed genres include Techno, Hands Up, House, Hardstyle, Trance, Dance, Hardcore, Rawstyle and Happy Hardcore. The site also lists sister stations HouseTime.FM, HardBase.FM and TranceBase.FM, plus a broadcast schedule and tracklist.
The Tehran Times is an English-language daily newspaper in Iran that began in 1979. It covers domestic cultural, political, economic, social and sports news, plus commentaries and foreign news. It also highlights Iran's tourist attractions and women's affairs. The paper is printed every day except Fridays and has appeared in color since March 2011.
Tel Aviv University is a university in Israel offering undergraduate, graduate, short-term and study abroad programs. It has faculties and programs in arts, engineering, exact sciences, humanities, law, life sciences, management, medical and health sciences, and social sciences, plus interdisciplinary units in areas such as neuroscience and AI.
Telescope is a publishing platform focused on simplicity, speed, and privacy. It offers an editor for images, videos, tweets, and code blocks, and provides free SSL and CDN, unlimited posts and pageviews, and a REST API. A paid Plus/Pro tier adds custom domains, style changes, branding removal, unlimited blogs, and extended statistics.
TestDriver is an AI code reviewer that runs every pull request in a real desktop sandbox, finds bugs, and builds end-to-end UI tests. It adds tests back as a new pull request and runs unattended in CI. Pricing starts at $20 per seat per month on the ProCloud plan with 120 testing minutes included, plus $0.14 per testing minute.
TETR.IO is a free-to-win online stacker game in the same genre as Tetris. It offers multiplayer play against friends and foes worldwide, solo modes and leaderboards, plus the TETRA CHANNEL for leaderboards, achievements and replays.
