Free SEO Tools. No Sign-up.
Public tools and browseable SEO resources.
Browse websites and keyword trends, run PageSpeed and on-page checks, or use the SEO wiki. No account or subscription required.
No account or sign-up.
No Account Required
No subscription charge or account signup. Fair-use, anti-abuse and provider limits still apply.
No Sign-up
Land on the tool, get the answer. No email and no onboarding wizard.
Public Data and Audits
Browse stored website and keyword data, run Lighthouse, and inspect on-page SEO.
Built for SEO
Public resources complement the deeper paid website, REST API, and MCP workflows.
Public SEO Tools. No Account Required.
Browse stored data or run a focused public audit without an account.
Top Websites Directory
Top sites, organized by category
Browse curated sites by category with traffic estimates, year-over-year changes and trending picks.
Curated sites
Category directory
Trending Keywords
Rising search terms, ranked by YoY growth
Compare year-over-year growth with complete monthly history since January 2023.
Trending list
Top 100
Top Keywords
High-volume searches by topic
Explore popular keywords across everyday topics such as weather, jobs, shopping, travel and restaurants.
Topic groups
Search volume
Page Speed Test
Lighthouse audit for any URL
Paste a URL to check page speed, Core Web Vitals, SEO health and the issues holding the page back.
~40s audit
Mobile & Desktop
SEO Page Checker
On-page SEO audits
Check any URL's on-page SEO in seconds. Inspect titles, meta tags, headings, canonical, Open Graph, structured data, and image alt coverage. A Chrome side-panel extension that audits any page locally — titles, metadata, headings, schema and more.
In under 10s
Export results
Chrome Extension
On-page checks in Chrome
Open the Seonio extension page for Chrome setup and inspect page titles, metadata, headings, links, images and structured data.
Page inspection
Chrome setup
SEO Wiki
SEO and digital terms, explained simply
A curated reference across SEO, UX, online marketing, web development, AI, social media and data science, with search-volume context where available.
SEO glossary
Multiple topic areas
Why Are These Free?
Because useful public checks should be easy to try.
Designed as public resources
These browseable datasets and focused audits are separate from metered account research actions.
Honest tools build trust
If our free tools are useful, you’ll know what to expect from the paid ones. If they’re not, you’ll know that too.
Need deeper data?
Keyword research, clustering, traffic checks, backlinks, scraping, REST API and MCP workflows are available with a testing or subscription balance.
Ready for the full toolkit?
Keyword research, SERP-based clustering, traffic checks, backlink analysis and a no-code scraper — all under one login.
Start Your SEO Research in Seconds
Start with $1 to test Seonio • No card required