Sigma File Manager is a free, open-source file manager for Windows and Linux. Its features include a smart global search with typo correction, tabs, split view, and an extensions marketplace. It supports LAN file sharing with browser access and FTP, zip archives, and tags, and can replace File Explorer for most everyday actions on Windows.
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SimilarSites is a Chrome Extension that enables people to discover similar and related sites. It enables viewing of monthly visitor, has more than 70K people, and is powered by SimilarWeb SimilarTech. It has Site Removal Request.
Sindre Sorhus is a page listing the developer's completely free apps without ads, organized by platform including macOS, iOS, watchOS and visionOS. Listed apps include Imago, Menu Drop, Gifski and Pasteboard Viewer.
A personal repository for serving web content and APIs for larger projects and games, also used as a download CDN for large files. It hosts online games including Eaglercraft, Eaglercraft Beta, and Five Nights At Winston's, plus tools such as an Eaglercraft 1.5.2 Crash Viewer and a CSS Sprite Sheet Generator.
Sketchfab is a platform for publishing, sharing, and discovering 3D content on web, mobile, AR, and VR. It offers a universal 3D/VR viewer that works in all browsers and operating systems without a plugin, and uses compression to deliver models. Users can embed and share 3D models on websites, forums, and social media. The site also offers free 3D models under Creative Commons licenses.
SkimFeed is a news aggregator that gathers feeds and news for subjects including technology, gaming, science, design and trends. The site also lists topical pages such as cars, politics, investing and weather, and offers a What's Hot view that draws on Hacker News and other technology sites.
Browse movies and television series through Sling's web catalogue and viewing pages.
SmartTVKick is an app for watching the Kick.com streaming service on FireTV and Android TV devices. It includes a multi-viewer supporting up to four streams, favorites, search, quality control and themes. The readme states the app has no affiliation with Kick Streaming Pty Ltd.
A knockback calculator for Super Smash Ultimate that computes damage, knockback and shield results from attacker, target and move data. It includes a data viewer for hitboxes and configurable game settings.
A small tool to view your snapchat location data on a map
Snowstream indexes movies and television series for browsing and online viewing with genre browsing.
The Sol Genomics Network is a resource for Solanaceae genomics. It hosts projects and data including the Solanum Pan Genomics Project, tomato immune response data, a new tomato reference genome, 100 tomato genomes, the Varitome Project and an eggplant genome release. It also accepts submitted maps for a comparative viewer and related tools.
Designcenter Solid Edge Community Edition is free professional 3D CAD software intended for personal use by makers, CAD enthusiasts and design challenge competitors. It supports designing parts, assemblies and sheet metal, with automated drafting, exploded views, animation, rendering and simulation. Files cannot be opened in commercial versions and 2D drawings are watermarked.
A free, open-source application for Windows, Linux and Mac that views and analyses the contents of music audio files. It offers configurable visualisation, analysis and annotation of recordings and is aimed at musicologists, archivists and signal-processing researchers.
Sophon is an AI research paper platform. It showcases trending AI research papers, with each paper linked to the benchmarks, methods and models it introduces. The platform's filtering view covers the 2,000 most recent papers, and it maintains a full index of 22,445 papers.
Regional streaming catalogue for Russian and Soviet films and television programmes, presented through Soviet Movies Online, including subtitle-supported viewing.
Space Atlas is a free, interactive 3D map of tracked satellites and rocket bodies orbiting Earth, described as covering objects from Sputnik in 1957 to today. It displays about 22,242 objects in orbit and offers real-time tracking, a timeline scrubber, and a view of satellites passing over the user's location. Orbits are approximated from the public CelesTrak catalog.
Space Time is a browser-based 3D universe explorer built from astronomical catalogs, telescope surveys and computed motion. It covers the solar system, stars, deep-sky objects and the observed cosmic web in one continuous view, with no account required. It is free and requires no download.
SpaceFromSpace is an archive of satellite imagery that includes declassified Cold War reconnaissance photographs and modern spaceport views. Images are stitched and georeferenced from raw USGS datasets and presented on interactive maps, with galleries covering declassified, spaceport and recently added scenes.
SpaceSim is a free 3D space simulator that runs in a browser. It offers travel across the Solar System, time changes, source-backed worlds and postcards, along with journeys such as a grand tour of the Solar System, an ISS trajectory view and a procedural stellar laboratory for known stellar objects.
Movie and television guide from Spaghetti Western Database, covering programmes, credits, discovery, and viewing references.
spark is a performance profiler for Minecraft clients, servers, and proxies, with a built-in profiler for diagnosing performance problems and bottlenecks. It also produces heap dumps, summarizes memory usage, monitors GC activity, and reports key metrics. The website serves as an online viewer for spark data.
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.
SportsBite provides live television channels and recent-programme viewing through its web service.