Open source alternative to Semrush and Ahrefs
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Updated
Aug 12, 2026 - TypeScript
Open source alternative to Semrush and Ahrefs
Broken link checker that crawls websites and validates links. Find broken links, dead links, and invalid URLs in websites, documentation, and local files. Perfect for SEO audits and CI/CD.
Curated list of awesome SEO tools
SEO & Security Audit for Websites. Lighthouse & Security Headers crawler, Sitemap/Keywords/Images Extractor, Summarizer, etc ...
🔍 Google SEO's full docs as an AI prompt machine — drop it into your AI assistant to map every public route, audit each page against Google's rules, and fix the gaps step by step.
Open-source SEO monitoring. GSC + Site Crawler + Core Web Vitals in one dashboard.
Open-source end-to-end GEO implementation: status analysis, diagnosis, strategy, tickets, execution, verification
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A curated list of real Micro SaaS tools categorized by niche. Perfect for inspiration, research, and startup ideas.
A free SEO research tool using Model Context Protocol (MCP) powered by Ahrefs data. Get backlink analysis, keyword research, traffic estimation, and more — directly in your AI-powered IDE.
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ContentSwift - Free content research / optimization tool for SEO. As an alternative for Surfer, Neuronwriter, Frase, etc..
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