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searx.space

searx.space

searx.space is a directory of online and offline SearXNG instances. The site lists 70 currently online SearXNG instances, and tracks instance status including offline, connection timed out, HTTP client and server errors. For each listed instance, it displays details such as URL, software version, TLS configuration, security scores, certificate information, IPv6 support, country, associated network, search response times and uptime. Users can submit requests to add or remove instances via GitHub issues, and can filter out networks with known privacy issues.

segment-anything (SAM)

github.com

segment-anything (SAM) is an open-source GitHub repository from Meta's Facebook Research team for the Segment Anything Model. It provides code for running model inference, links to download trained model checkpoints, and example notebooks demonstrating model usage, with support for segmenting objects in images and videos via SAM 2.

SemanticDiff

app.semanticdiff.com

SemanticDiff for GitHub is a web tool that lets users review GitHub commits and pull requests using a language aware diff. Users log in via GitHub. The site links example pull requests from axios, DevToys and Apache Drill.

SEOnaut

seonaut.org

SEOnaut is an open source SEO auditing and reporting tool. It crawls websites and checks for broken links, redirects, duplicated or missing meta tags, heading issues, hreflang problems and missing image alt attributes. The tool can be configured to crawl subdomains or sitemaps, follow nofollow links, check external links and access password-protected sites via HTTP Basic Authentication. It can also create WACZ archives of a site.

Session Alive

github.com

Session Alive is a Firefox and Chrome add-on for keeping a website session alive to avoid session timeout messages. Rules can use a background request via AJAX or a foreground request, with a rule name, trigger URL and request interval. Background requests support an asterisk wildcard in the trigger URL.

ShareX-Upload-Server

github.com

ShareX-Upload-Server, also called ShareS, is a feature-full, stable Node.js file server compatible with ShareX. It supports uploading images, videos, code, and text, provides markdown rendering, password-protected uploads, Discord-based logging and administration, URL shortening, and a full front end, and can be used standalone or via reverse proxy.

ShellCheck

shellcheck.net

ShellCheck is an open source static analysis tool that automatically finds bugs in shell scripts. It is written in Haskell, licensed under GPLv3, and can be installed locally via cabal, apt, dnf, pkg or brew. A web page allows pasting a script to view its output.

ShortcutKeeper

shortcutkeeper.com

Shortcut Keeper is a macOS app for saving and reviewing keyboard shortcuts used in everyday apps. Users store shortcuts per app, check them via a menu bar icon, and can bring the app forward with a keyboard shortcut. It is lightweight with a dark theme, filtering and layout options, and is bought once without subscriptions.

Shortwave

flathub.org

Shortwave is an internet radio player distributed via Flathub. It provides access to a database of over 50,000 radio stations. Users can create personal libraries of favorite stations, search for stations, have tracks automatically recognized with the option to save them, and play audio on supported network devices such as Google Chromecasts. It integrates with the GNOME desktop environment and has a responsive layout for different screen sizes. Version 5.1.0 added minor improvements and bug fixes including selectable track titles, accessible station search, faster cover art loading and a maximum recording duration.

SIBiLS

sibils.org

SIBiLS is a service of the Swiss Institute of Bioinformatics that provides personalized information retrieval in biological literature. It offers fully customizable searches in semantically enriched content using keywords or mapped biomedical entities from standardized and legacy vocabularies. Its collections include MEDLINE, PubMedCentral, Plazi treatments and PMC supplementary files, updated daily, and it is accessible via REST APIs.

Sigma.js

sigmajs.org

Sigma.js is a WebGL-powered JavaScript library for interactive graph visualization, built on graphology. It provides GPU-accelerated rendering, built-in pan, zoom, hover and multi-touch interactions, and works with React, Angular, Vue or vanilla JavaScript. Layouts, metrics and community detection come via graphology's standard library.

Silent Install

silentinstall.org

Silent Install Builder is a Windows tool for automating software installation across multiple devices. It records installation automation scripts, builds silent installation packages, and installs exe and msi files unattended. It can recognize common installer types and supports custom installation conditions using JavaScript and the .NET Framework API. Packages can be deployed via GPO and third-party tools.

SimpleX

simplex.chat

SimpleX Chat is a private and encrypted messenger without any user IDs. Users make a private connection via link or QR code to send messages and make calls. Every contact and group is stored on the device rather than in a server's database, and anyone can run servers. From v6.2 the app supports business addresses for customer communication.

Slangit

slang.net

Slangit is a slang dictionary service accessible via its website and mobile apps. It provides definitions for thousands of slang terms, acronyms, and abbreviations, with daily updated entries, a term of the day feature, and free offline-capable apps for Android and iOS.

SmartImage

github.com

SmartImage is a reverse image search tool offered in a Windows GUI version and a cross-platform Rdx version. It queries supported image search engines including SauceNao, IQDB, Ascii2D, trace.moe, and Yandex. Users can input images via direct links, drag-and-drop, clipboard, system context menu, or command line. The tool opens the best matching results in the user's default web browser.

Snapgen AI

snapgen.ai

Snapgen AI is a free, unlimited AI video generation platform. It uses Veo 3.1 to let users create videos, speech, and images via its advanced AI tools, and is intended for content creators' generation needs.

snapgifs

github.com

A tool to send gifs to people via snapchat

Snowflake

snowflake.torproject.org

Snowflake is a censorship circumvention tool from the Tor Project that connects users to the Tor network where Tor is blocked by routing connections through volunteer proxies in uncensored countries. It disguises traffic as a video or voice call using WebRTC. It comes embedded in Tor Browser, Orbot, and Ricochet-Refresh, and users can deploy proxies via a browser add-on or standalone software.

SoftwareOK

softwareok.com

SoftwareOK offers freeware, desktop utilities and system utilities for Windows 10, Windows 8.1 and Windows 7, along with tips, how-to FAQ and guides. It lists programs such as DirPrintOK for printing folder contents, DesktopOK for saving desktop icon positions and QuickTextPaste for pasting predefined text via keyboard shortcut.

SOL

sol.ospfranco.com

Sol is an open-source macOS launcher focused on simplicity and speed. It offers an emoji picker, calculator, file and app search, a window manager, clipboard manager, calendar integration, browser bookmarks, media key forwarding, quick notes, process manager, keyboard shortcuts, translation, a notch hider, and developer commands. It is installed from the latest release or via Homebrew.

Solaar

github.com

Solaar is a Linux device manager for many Logitech keyboards, mice and other devices that connect wirelessly to a Unifying, Bolt, Lightspeed or Nano receiver, or via USB cable or Bluetooth. It is not a device driver and responds only to special messages from devices otherwise ignored by the Linux input system. It supports pairing and unpairing devices with receivers, configuring device settings, custom button configuration and running rules.

Soorgeon

github.com

Soorgeon is a tool that converts monolithic Jupyter notebooks into Ploomber pipelines. It is compatible with Python 3.7 and higher and installs via pip. The repository was archived by its owner on Feb 18, 2025, and is now read-only. The project describes itself as being in alpha.

Sourcebot

sourcebot.dev

Sourcebot is a self-hosted tool that helps human users and coding agents search, navigate, and understand complex enterprise codebases. It provides fast code search across all repositories and branches, AI-powered Q&A that references code and connected external tools, and a code context layer for agents. It is deployed via a single Docker container on user-managed infrastructure, with free Basic, paid Pro, and custom Enterprise pricing plans available.

Information infrastructure for the study of religion accessible via RelBib, the SIS´s web portal and online bibliography.