Browse free open source SEO tools and projects below. Use the toggles on the left to filter open source SEO tools by OS, license, language, programming language, and project status.
AEO tracking toolkit (CLI + dashboard) built for AI agents like Claude
Next SEO is a plug in that makes managing your SEO easier in Next.js
GEO-first SEO skill for Claude Code
Open-source Answer Engine Optimization platform
Plugin to add metadata tags for search engines and social networks
Professional SEO and GEO content workflows for brands, SaaS teams
World's first seo control panel for multiple websites
A free, feature-rich web analyzer and exporter/cloner you will love!
Free online developer tools JSON formatter, Base64 encoder, and more
Intelligent SEO keyword miner and predicing tool
Full SEO (Search Engine Optimization) app for Android.
Open Source SEO & SEM Text Creation Tools for free Article Writer
Professional SEO and GEO audit workflows for brands, SaaS teams
A specialized Claude Code workspace for creating long-form
Seo Tool: AI Autoblogger for ArtikelSchreiber.com and UNAIQUE.net
This is a base PHP framework for making simple websites with clean URL