github.com
ShotOG helps manage meta tags, Open Graph data, and social sharing previews for websites.
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sigmajs.org
A JavaScript library aimed at visualizing graphs of thousands of nodes and edges.
chrome.google.com
Similarweb tracks rankings, SERP visibility, and keyword performance across search results.
github.com
Open-source project that applies AI to data analysis, extraction, visualization, or business intelligence.
sitebulb.com
Sitebulb crawls websites to audit SEO, accessibility, performance, and technical page issues.
siteliner.com
Siteliner tracks rankings, SERP visibility, and keyword performance across search results.
github.com
sitemap-module helps generate, validate, or manage XML sitemaps and robots files for search indexing.
github.com
siteone-crawler checks page speed, performance, technical issues, and web quality signals.
github.com
High performance distributed data processing in NodeJS.
sleepingtime.org
Estimates a Twitter user’s likely sleep schedule from posting times and activity patterns.
slemma.com
Analyzes structured data and helps produce queries, insights or visualizations.
github.com
slickstack is an open source tool or library for SEO, metadata, crawling, routing, or website optimization.
github.com
A system for quickly generating training data with weak supervision.
snowpixel.app
Snowpixel applies AI to data analysis, extraction, visualization, or business intelligence.
github.com
AI-generated visualization prototyping and editing platform, support 2D, 3D models, combined with LLM(Large Language Model) for quick editing.
github.com
Massively parallel self-organizing maps: accelerate training on multicore CPUs, GPUs, and clusters, has python API.
github.com
Self Organizing Map written in Python (Uses neural networks for data analysis).
spark.apache.org
Apache Spark is a multi-language engine for executing data engineering, data science, and machine learning on single-node machines or clusters.
github.com
Spark is a fast and general engine for large-scale data processing.
github.com
Analyzes structured data and helps produce queries, insights or visualizations.
github.com
specification.website is an open source tool or library for SEO, metadata, crawling, routing, or website optimization.
springboard.com
A blog with resources for data science learners.
spyfu.com
SpyFu helps research keywords, search demand, related terms, and content opportunities for SEO.
data.stackexchange.com
An open source tool for running arbitrary queries against public data from the Stack Exchange network.