Free SEO Tools
All the free SEO tools you need to ship a clean page, in one place. No sign-up required for most of them. Whether you need free SEO tools for keyword research, website analysis, or quick on-page checks before publishing, the tools below cover the workflows that actually move rankings. Built by ChatSEO, the AI-powered SEO platform connected to your Google Search Console.
SERP & Snippet Tools
Free SEO tools for Google search previews. Catch a truncated title or a meta description that's too long before it ships live.
SERP Snippet Preview
Preview how your title and meta description appear in Google before publishing, on desktop and mobile.
Try it freeMeta Description Checker
Check the length, pixel width and quality of your meta description against Google's display limits.
Try it freeOpen Graph Checker
Validate the Open Graph and Twitter Card tags on any URL and preview how the link will render on social shares.
Try it freeTechnical SEO Tools
Free SEO tools and software for the technical layer, the bits Googlebot reads before it ever sees your content.
Robots.txt Generator
Generate a valid robots.txt file for your site in seconds. No coding required.
Try it freeSchema Markup Generator
Create JSON-LD structured data for Articles, FAQs, Products, LocalBusiness and more.
Try it freeGoogle Index Checker
Check whether any URL is indexed by Google, and see the exact title, snippet and rich results Google currently shows for it.
Try it freeOn-Page Content Tools
Free SEO tools for on-page optimization. Check what your content actually emphasizes before you ship it.
On-Page SEO Checker
Get a 0–100 on-page SEO score for any URL with 17 weighted checks and a benchmark against the top 3 ranking pages.
Try it freeH1 Checker
Audit the H1 tag of any URL: presence, uniqueness, length, and alignment with the page's target keyword.
Try it freeReadability Checker
Score the readability of any page (Flesch, sentence length, passive voice) so your content stays scannable.
Try it freeKeyword Density Checker
Analyze keyword frequency and density for any text or URL. Spot over-optimization before you publish.
Try it freeWhy use these free SEO tools?
Most paid SEO suites bundle features you don't need on day one. These free SEO tools online cover the fundamentals (a SERP preview, a meta description checker, a robots.txt generator and a schema markup generator) without an account or credit card. They're some of the best free SEO tools for beginners because each one does a single job and gives you a usable result in under a minute.
They also work well as a daily complement to your existing stack. Use the SERP preview before publishing a page, run the meta description checker on every new post, regenerate your robots.txt the day you ship a new section, and drop schema markup on pages where rich results actually matter. That's the loop most SEOs run, and the best free tools for SEO are the ones that fit cleanly inside it.
Once you outgrow the basics (when you want keyword research connected to your real search data, AI-powered content briefs, or automated rank tracking), ChatSEO plugs into your Google Search Console and gives you recommendations specific to your site. The free SEO tools and software above are a strong starting point. The full ChatSEO app is where they connect into an end-to-end SEO workflow.