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HTML widgets are R packages that produce interactive web visualizations, working like R plots. A line or two of R code produces a D3 graphic or Leaflet map. Widgets run at the R console and can be embedded in R Markdown reports and Shiny web applications. The page lists widget examples including Leaflet, dygraphs, Plotly and Highcharter, and describes composing dashboards with flexdashboard and linking widgets with crosstalk. New widgets can be developed by bridging R and JavaScript.

Import.io is a web data extraction and AI infrastructure platform. It converts website content into structured data, and provides web scraping tools, managed data services, pricing intelligence, and MCP tools for AI agents. It supports use cases across multiple industries including retail, ecommerce and AI development.

Infolib

infolib.org

InfoLib is a financial research terminal combining options analytics, company research, SEC filings, institutional holdings, market data, screeners and calendars in one platform. It offers free tools without an account, plus paid plans: Options, Research and InfoLib Complete.

META SEO inspector

chrome.google.com

META SEO inspector is a browser extension for checking SEO signals, page data, rankings, or website metrics.

Odoo

odoo.com

Odoo offers a free, open-source website builder and CMS. The AI-powered configurator creates a website through steps including setting business type, selecting a color palette, uploading a logo and picking a theme. Pages are built with drag-and-drop blocks, and features include mobile responsiveness, translation, SEO tools and analytics.

raw

rawgraphs.io

RAWGraphs is a free and open source tool for data visualization. It is a web app that offers almost 30 visual models to visualize quantities, hierarchies and time series. Data inserted is processed only by the web browser, and projects can be saved or exported as vector or raster images.

Ripped

ripped.guide

Ripped is a collection of sites and tools that are trusted by the community. The guide is built using Vite and React with a custom MDX rendering setup, and stores zero cookies in the browser. It uses privacy-first Umami Analytics. Visitors can browse categories in the sidebar and contribute through pull requests or issues.

Screaming Frog SEO Spider

screamingfrog.co.uk

Screaming Frog SEO Spider is a website crawler for Windows, macOS and Ubuntu used for technical SEO site audits. It audits sites for over 300 SEO issues and can find broken links, audit redirects, analyse page titles and meta data, and generate XML sitemaps. A free version is available.

SearchTempest

searchtempest.com

SearchTempest is a classified ad search engine that lets users search listings across Facebook Marketplace, craigslist, eBay and other platforms. Results can be filtered by U.S. state, driving distance, or users may search all available listings at once. The site is not affiliated with Facebook or craigslist, and has operated from 2006 through 2026. It stores user IP addresses, browser type, page view data and entered search filters for site administration, analytics and partner advertising use.

SEO Sidebar

chromewebstore.google.com

SEO Sidebar is a browser extension for checking SEO signals, page data, rankings, or website metrics.

SerpBear

docs.serpbear.com

SerpBear is an open source search engine position tracking app. It tracks a website's keyword positions in Google and sends email notifications about position changes. It uses third-party scrapers or proxy IPs to scrape Google search results, with Basic, Custom and Smart scrape strategies. A built-in API supports reporting tools, and Google Ads and Search Console integrations are available.

shiny

shiny.posit.co

Shiny is an R and Python package for creating interactive web apps, letting users interact with data and analysis without web development skills. Apps can be written from R or Python. Questions are answered through Posit Community and Stack Overflow, with subscription support for hosting services.

Sitebulb

sitebulb.com

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.

TextOptimizer

chrome.google.com

TextOptimizer is a browser extension for checking SEO signals, page data, rankings, or website metrics.

xRanks

xranks.com

Website ranking and analytics tool for checking site popularity, traffic, and web statistics.

Bolt.new

bolt.new

Bolt.new is an AI-powered builder for creating websites, applications, and prototypes. Users can build projects using text input, with built-in features including unlimited databases, user management and authentication, SEO optimization, hosting with analytics and custom domain support. It offers use cases for small businesses and enterprises, plus production-ready templates.

Google Search Console

search.google.com

Google Search Console helps monitor indexing, search performance, crawl data, and site visibility.

Ahrefs' Keywords Generator

ahrefs.com

Ahrefs' Keywords Generator helps research keywords, search demand, related terms, and content opportunities for SEO.

Ahrefs' SEO Toolbar

chrome.google.com

Ahrefs' SEO Toolbar crawls websites to find broken links, redirects, and technical SEO issues.

AICaller.io

aicaller.io

AICaller.io is a robocaller that makes automated outbound phone calls using AI for sales and marketing. It supports lead qualification, meeting booking, appointment booking and data gathering, offers a choice of voices, and connects to over 6,000 applications via Zapier. It can be used through a web portal or APIs.

AltTextLab

alttextlab.com

AltTextLab is an AI-powered alt text generator for images. It produces descriptions in 130+ languages and integrates with WordPress, Shopify, Webflow, and 20+ tools, also offering a web snippet and REST API. It provides 25 free credits monthly with no credit card required.

AnalyzeID

analyzeid.com

AnalyzeID is a reverse lookup tool that searches Google Analytics, Google Adsense, Amazon affiliate, email, IP and other third-party IDs to find other websites owned by the same person. The site lists uses such as researching site owners, checking whether sellers are mass producing sites, and finding money sites. It presents itself as more than a reverse IP tool when owners host sites on different servers.

AnswerThePublic

answerthepublic.com

AnswerThePublic helps research keywords, search demand, related terms, and content opportunities for SEO.

AskYourDatabase

askyourdatabase.com

AskYourDatabase is a tool for querying SQL databases in natural language, returning SQL, answers, and charts. It supports PostgreSQL, MySQL, SQL Server, BigQuery, Snowflake, and other engines. Offerings include a Windows or macOS desktop app, an embeddable website chatbot, a dashboard builder, and a private deployment option for organizations with hosting or data-handling requirements.