Free tools
Free SEO tools
Quick checks for one page or one website at a time, with no sign-up. When you want every page checked, SEOSage crawls the whole site.
Free page check
Title, description, headings, canonical, indexing, images and links for one page.
Robots.txt tester
See if a page is allowed or blocked for Googlebot or another crawler.
llms.txt checker New
Check an llms.txt file, its links, and which AI crawlers robots.txt lets in.
Sitemap checker
Find the sitemap, count the URLs and test a sample for errors.
Noindex checker
See if a page is set to noindex and what its canonical tag says.
Redirect chain checker
Follow every redirect hop and spot chains, loops and dead ends.
Page status checker New
Paste up to 100 addresses and see every status code and redirect in one table.
404 checker
Test the links on a page and list the broken ones.
Title and meta description checker
Check title and description width in pixels, with a live search preview.
Internal link checker
Test the internal links on a page for redirects and errors.
Alt text checker
List the images on a page that have no alt attribute.
Open Graph checker
See which social share tags a page has and which are missing.
Hreflang checker
Test hreflang tags, language codes and return links.
Schema markup validator
Check JSON-LD structured data and the fields Google asks for.
SEO ROI calculator New
Estimate the return on SEO and the month it pays for itself.
What is a free SEO tool?
A free SEO tool is a web-based checker that analyzes a single page or file for a specific set of SEO signals — title tag length, noindex status, redirect chains, image alt text, and more. Free SEO tools are useful for quick spot checks: you type a URL, the tool fetches it, and you see the result in seconds with no account and no cost. They are different from SEO audit software, which crawls every page of a website and runs hundreds of checks in one pass.
Most free SEO tools check one page at a time. That works when you want to verify a single fix — for example, checking that a noindex tag was removed, or that a redirect now goes to the right place. When you need to find every problem across a whole site, a single-page tool becomes slow: you would need to check each page one by one. A desktop SEO crawler like SEOSage crawls every page automatically and shows all the problems in one list, sorted by how serious they are.
The SEO tools on this page cover the checks that come up most often: page status, redirect chains, robots.txt rules, sitemaps, title and description length, image alt text, open graph tags, schema markup, hreflang tags, and internal links. Each SEO tool is free, runs in a browser, and needs no login. They are built to be fast and readable so you can act on the result without interpreting raw data.
When free SEO tools are the right choice
- Verifying a specific fix on one page without running a full crawl
- Checking a page you do not own or manage — a competitor's page or a supplier's page
- Quick checks during development before a full pre-launch audit
- Teaching new team members what each SEO signal means, with a real example in front of them
Free SEO tools on this page
- Free page check: title, description, headings, canonical, indexing, images and links for one URL
- Robots.txt tester: see if Googlebot is allowed or blocked for any address
- Sitemap checker: find the sitemap, count the URLs, and test a sample for errors
- Redirect chain checker: follow every hop and flag chains, loops and dead ends
One page is a start
These tools check one page or one file at a time. Real sites have hundreds of pages. SEOSage crawls all of them on your own computer, with no page limit, then lists the problems by how serious they are.