Free SEO Tools

Free SEO Tools for Content Research & Growth

Research keywords, analyze search results, study competitors, check backlinks and audit websites with practical SEO tools from WriterFlowLab.

Choose an SEO tool

Free Keyword Research Tool

Find keyword ideas with estimated search volume, difficulty, CPC and search intent, plus related keywords and questions.

Find keywords
Keyword Difficulty Checker

See how hard a keyword is likely to be to rank for, on a 0 to 100 scale, and what the current top 10 looks like.

Check difficulty
SERP Checker

Check the current Google results for a keyword by country and device, with search features shown separately.

Check a SERP
Competitor Analyzer

Estimate a domain's organic traffic and see its top keywords, top pages and organic competitors.

Analyze a competitor
Backlink Checker

Preview a site's backlinks, referring domains, nofollow links and the anchor text other sites use.

Check backlinks
SEO Site Audit

Crawl up to 25 pages and get errors, warnings and notices for links, metadata, headings, indexability and HTTPS.

Run an audit

From research to publishing

These SEO tools sit alongside our free writing tools as one simple workflow:

  1. Research: find topics with the keyword research tool, check how competitive they are with the difficulty checker, and see what already ranks with the SERP checker and competitor analyzer.
  2. Write: draft to the length and structure the topic needs, using the word counter and readability checker.
  3. Optimize: review phrase use with the keyword density checker and title and description lengths with the character counter.
  4. Publish and maintain: check your pages with the SEO site audit and track who links to you with the backlink checker.

All of our browser-based writing tools are listed on the free tools page.

How these SEO tools work

  • Unlike our writing tools, which run entirely in your browser, the SEO tools send your keyword, domain or URL to WriterFlowLab's server and to DataForSEO, a third-party SEO data provider, to fetch results. Nothing you enter is added to the page address or sent to Google Analytics.
  • Search volumes, difficulty scores, traffic and backlink figures are estimates from the provider's databases. They can differ from Google Ads, Search Console and other SEO tools.
  • Each tool has a small free daily allowance, and recent results are cached so repeated searches load faster.

Each tool page explains its metrics, limitations and data handling. See also our privacy policy.

SEO guides

Want the full workflow in one place? Get the free AI content workflow guide.