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Simple Statistics is a JavaScript implementation of descriptive, regression, and inference statistics. It is written in literate JavaScript with no dependencies and is designed to work in all modern browsers and in Node.js. The repository is published under an ISC license.
SiteAnalyzer is a website crawler for technical audits and SEO optimization. It scans site pages and checks more than 60 parameters, including broken links, duplicate pages, meta tags and server response codes. It offers integrations with Google Search Console, Yandex Webmaster and Yandex Metrica, internal PageRank calculation, site structure visualization and sitemap generation. A free version and a Pro plan are available.
Sitebulb is a website crawler for SEO audits, available as desktop software and a cloud service. It reports prioritized hints, audit comparison and JavaScript crawling. Desktop crawls up to 500,000 URLs per audit; cloud supports up to 10m URLs per audit with real-time team collaboration.
Siteliner tracks rankings, SERP visibility, and keyword performance across search results.
sitemap-module helps generate, validate, or manage XML sitemaps and robots files for search indexing.
siteone-crawler checks page speed, performance, technical issues, and web quality signals.
Skale is a distributed data processing and machine learning engine that provides a high-level API in JavaScript and a parallel execution engine on top of Node.js. The repository was archived by its owner on May 29, 2021 and is read-only. It supports multiple data sources and formats, and can run in local or distributed mode.
Estimates a Twitter user’s likely sleep schedule from posting times and activity patterns.
Analyzes structured data and helps produce queries, insights or visualizations.
slickstack is an open source tool or library for SEO, metadata, crawling, routing, or website optimization.
SmartLnks is a free secure smart link generator and URL shortener. The platform offers link creation and targeting features, a browser extension, link scanning, preview and analytics tools, and is marketed as a solution for maximizing link clicks and capturing conversions.
Snapp is a self-hosted URL shortening platform with a built-in dashboard, multi-domain workspaces, team permissions, analytics and a REST API. Features include short URLs with optional custom shortcode, notes, tags, teams, expiration, hit limits and UTM templates.
Snorkel is a system for quickly generating training data with weak supervision, released under an Apache-2.0 license and written in Python. The project started at Stanford in 2015 to programmatically label, build, and manage training data. The team now focuses on Snorkel Flow, an end-to-end AI application development platform based on the core ideas behind Snorkel.
Snowpixel is a creative studio for generating AI videos, music, sound effects, images, and 3D objects from prompts and source media. It offers text-to-video, image-to-video, AI music, text-to-3D, and still generation within one workspace. Credit packs start at $10 USD for 50 credits and $45 USD for 250 credits.
A powerful social media management platform with multi-track video editing (Remotion), unified publishing across Instagram, TikTok, YouTube & more. Features AI-powered caption generation, cross-platform analytics, comment management, e-commerce sync (Shopify/WooCommerce), and a comprehensive media library. Built with Next.js 16 & Prisma.
A tool for tracking engagement metrics across Twitter, Instagram, and TikTok.
Social Media API: Automate Posting and Analytics to Social Networks like Instagram, TikTok, X/Twitter, Facebook, LinkedIn, Reddit, YouTube, and Telegram
Social Blade tracks daily statistics and growth for content creators across YouTube, Instagram, TikTok, Twitch and Facebook. Users can compare accounts and analyze growth, and top lists show popular creators per platform. Paid memberships remove ads and unlock historical data, charts and report cards.
Search engine for Reddit posts and comments with filters for keywords, users, and subreddits.
Socialsonic is an AI LinkedIn growth platform by Writesonic. It provides trend discovery, AI-assisted content creation, post scheduling and thought-leader discovery. It also offers gamified consistency tracking and performance analytics. A 7-day free trial is available without a credit card.
AI-generated visualization prototyping and editing platform, support 2D, 3D models, combined with LLM(Large Language Model) for quick editing.
Somoclu is a massively parallel implementation of self-organizing maps, using multicore CPUs, MPI for cluster workload distribution, and CUDA acceleration. It supports OpenMP, MPI, and CUDA, runs on Linux, macOS, and Windows, and offers planar and toroid maps, rectangular and hexagonal grids, and Gaussian and bubble neighborhood functions. Both dense and sparse input data are supported, with interfaces for Python, R, Julia, and MATLAB.
SOMPY is a Python library for self-organizing maps structured similarly to somtoolbox in Matlab. It offers only batch training, PCA or RandomPCA initialization, component plane visualization, hitmap and U-Matrix visualization, and 1-d or 2-d SOM with rectangular, planar grid. It supports function approximation and predictions, mostly using Sklearn.