About OpenSEO Labs

Free, open-source SEO toolkit — built for developers, by developers.

What is OpenSEO Labs?

OpenSEO Labs is a free, open-source SEO analysis toolkit that helps developers and site owners audit and improve their website SEO. From technical SEO audits to AI-powered content analysis, every tool runs server-side in real-time — no sign-up required.

Free to Use

Every tool is completely free to use. No sign-up, no paywall, no hidden limits.

Privacy First

No data is stored or tracked. All analysis happens in real-time and results disappear when you leave the page.

Real-Time

Every tool fetches and analyzes your site live. No caching, no stale data — always fresh results.

Comprehensive

27 tools across 7 categories — from technical audits and AI analysis to performance and domain intelligence.