every-app/open-seo: Own your SEO. Research keywords and competitors on your terms. 100% open source.
OpenSEO is an open-source SEO tool that provides keyword research, rank tracking, domain insights, backlink analysis, and site auditing using DataForSEO APIs on a pay-as-you-go pricing model.
This resource is most valuable when developers need professional SEO analysis capabilities but cannot justify expensive monthly subscriptions, or when they want full control over their SEO data and the ability to customize workflows.