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.
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SSL Labs is a non-commercial research effort by Qualys offering documents, tools and thoughts related to SSL. It provides tools to test a server's certificate and configuration, test a browser's SSL implementation, and view SSL Pulse data on how other web sites are doing. It also publishes documentation on deploying SSL/TLS correctly.
SSLSecureProxy is a free secure web proxy for unblocking popular websites and browsing anonymously. The service routes connections over a 256-bit SSL connection, provides proxy servers in 10 locations with outgoing IP addresses from more than 20 locations, and imposes no bandwidth or download limit. Session data is deleted every 2 hours.
sssTwitter is a social media utility for platform customization, archives, embeds, or community tools.
Stability Matrix is a multi-platform package manager designed for Stable Diffusion. It offers one-click installation and updates for Stable Diffusion Web UI packages, a built-in inference interface for the system, and a launcher with a syntax-highlighted terminal emulator and routed GUI input prompts.
Creates or edits images with generative models and visual controls.
Versão em português do notebook para rodar a Web UI do Stable Diffusion no Google Colab de graça.
Stacher is a social media utility for platform customization, archives, embeds, or community tools.
Stack Exchange operates a network of over 180 community-powered question-and-answer websites covering a wide range of specialized topics. Users can ask and answer questions on niche subjects across the network's sites, which include communities for mathematics, physics, law, programming, and other fields.
Stakee is a TON liquid staking platform that lets users stake Toncoin and earn rewards with daily compounding. Staking can be managed through a Telegram bot or by connecting a TON wallet on the web, and withdrawals are described as instant. The minimum stake is 1 TON, with no maximum limit.
Stalwart is an open-source mail and collaboration server written in Rust. It supports JMAP, IMAP4, POP3, SMTP, CalDAV, CardDAV and WebDAV, combining email, calendars, contacts and file storage in one server with built-in spam and phishing protection. It runs as a single node or as a cluster.
Stanford CS336: Language Modeling from Scratch is the official course website for a Stanford class offered in Spring 2026. The course walks students through the process of developing a language model, including data collection and cleaning for pre-training, transformer model construction, model training, and evaluation before deployment. The site provides logistics, schedule, assignments, and course materials.
Star History is a web tool for viewing and comparing the GitHub star history graph of open source projects. The site also lists a top committers ranking and provides a Chrome extension.
A web tool for Stardew Valley that tracks progress toward 100% completion. Users upload a save file or manually update progress, and it supports Stardew Valley versions 1.6 through 1.6.9.
Stardima is a non-English web resource for regional media, books, tools, communities, or learning.
StarkWare develops STARK proof technology and core technology for the Starknet blockchain. The company states it was founded by co-inventors of STARKs. Its work covers scaling, privacy and quantum-resistant proofs, and the Cairo language for STARK-provable programs and Starknet smart contracts. STRK20 provides shielded balances and private transfers on Starknet.
Starring the Computer is a website cataloguing appearances of computers in film and television. Each appearance is rated on importance to the plot, realism and visibility. Fictional computers are excluded unless built from real computer parts.
Start.me statistics page showing public pages, link collections, and directory usage data.
Privacy-focused search engine that shows Google results without storing personal search data.
Startpage Emporium is a curated showcase of browser startpages created by 0XE4, listing over 70 beautiful startpages from across the web as of the snapshot, with a total of 80 startpages listed. The showcase includes startpages with a range of features including minimal design, search functionality, keyboard controls, to-do lists, weather updates, speed dials and themed designs, and accepts user submissions of startpages for inclusion.
Website statistics tool for checking traffic estimates, rankings, domain data, and site value.
State of the Salmon, working with partners, has assembled quantitative and qualitative information about salmon and their habitat across the North Pacific. Its resources page offers ways to discover this information, including downloading raw datasets, viewing static maps and exploring interactive web applications. Publications and presentations are also available for download.
Statemind is a blockchain security firm offering smart contract audits and security work, with stated expertise in Solidity and Vyper. Its audit process is described in five steps, from project review and code checks through interim reports and final verification.
StationView helps discover apps, SaaS products, no-signup tools, clones, or software alternatives.