KeySearch provides a free LSI keywords generator that accepts a keyword and returns semantically related keywords. The tool is described as using a basic LSI finding algorithm, while more in-depth LSI analysis is available with a KeySearch account.
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Keyword Insights is an SEO tool that groups keywords into topic clusters and produces content briefs. It identifies related keywords from sources such as Google Autocomplete, Reddit and People Also Asked, clusters them by SERP similarity, and turns clusters into briefs. It also includes a Search Intent feature and an AI Writer Assistant for content creation.
Keyword Surfer helps research keywords, search demand, related terms, and content opportunities for SEO.
Keywordideas.xyz helps research keywords, search demand, related terms, and content opportunities for SEO.
Koala AI is an AI SEO platform. It includes an SEO agent that plans from Search Console data, a writer that drafts on-brand articles, and one-click publishing to a CMS. It also bundles KoalaChat, KoalaImages, KoalaLinks and KoalaMagnets. KoalaLinks is an internal linking tool that works with WordPress, Shopify, Webflow, Ghost and custom sites.
kwrds.ai is an SEO keyword research tool. It generates keyword lists using Google autosuggest, provides real-time People Also Ask questions from Google, and analyzes search volume and potential traffic. A topic research tool uses AI for content ideas. The site lists a free tier and a paid plan at $39 per month, billed annually.
laravel-missing-page-redirector checks redirects, missing pages, HTTP paths, or referer data for technical SEO workflows.
laravel-sitemap helps generate, validate, or manage XML sitemaps and robots files for search indexing.
LaravelMetaTags helps manage meta tags, Open Graph data, and social sharing previews for websites.
LibreCrawl is a free, open-source SEO crawler offered as an alternative to Screaming Frog. It performs technical audits covering meta tags, schema markup, hreflang, social tags and PageSpeed metrics, and integrates Playwright for JavaScript rendering of single-page applications. The project is MIT-licensed and can be self-hosted, with CSV, JSON and XML exports. A REST API provides programmatic control of crawls.
Lighthouse Rich Result Checker helps create or test structured data, schema markup, and rich-result eligibility.
lighthouse-check-action checks page speed, performance, technical issues, and web quality signals.
linkinator helps monitor local SEO visibility, map rankings, business listings, and local search performance.
LocalFalcon tracks rankings, SERP visibility, and keyword performance across search results.
LSIGraph is a semantic and LSI keyword generator offering keyword research, a SERP analyzer, a content writer and a planner. The site states that LSIGraph is now SurgeGraph, an AI writing tool for humanized, SEO-optimized content, and directs visitors to SurgeGraph for the latest features and pricing.
Mangools is a suite of SEO tools for keyword research, SERP analysis, rank tracking, backlink analysis and competitor research. Its tools include KWFinder, SERPChecker, SERPWatcher, LinkMiner and SiteProfiler, with a keyword database of over 2.5 billion keywords. Rank tracking is weekly, with daily tracking on the Agency plan.
MapLight provides data series focused on United States federal campaign finance and congressional bills, intended for research and media organizations. Its Bill Positions dataset tracks which companies and organizations support or oppose specific bills moving through Congress, sourced from public records including company websites, press releases, and government documents. The dataset covers 2007 to 2021, includes more than 225,000 positions on over 14,000 bills, is no longer updated, and is available for academic and research use for a modest licensing fee.
marketing-skills helps plan, write, optimize, or analyze content for SEO and search visibility.
mcp-gsc helps monitor indexing, search performance, crawl data, and site visibility.
Turn entire websites into LLM-ready markdown or structured data. Scrape, crawl and extract with a single API.
Monitor Backlinks helps analyze backlinks, find link opportunities, and support SEO outreach workflows.
Moz Local is a local SEO tool for managing business listings across directories. It offers auto-syncing of listings, listing health monitoring, Google Business Profile performance insights, and centralized review management from one dashboard. Paid plans include Lite, Preferred and Elite tiers, with larger deployments handled through enterprise custom pricing.
Moz On-Page Grader is an SEO tool that takes a URL and keyword and returns a page optimization score with a checklist of recommended fixes. It is accessed through a Moz Pro free trial, which also includes Link Explorer, Keyword Explorer and On-Demand Crawl.
Moz Pro tracks rankings, SERP visibility, and keyword performance across search results.