Free SEO Tools
Free technical SEO helpers—meta and social previews, slug generation, robots.txt, sitemaps, and canonical checks.
Introduction
These free SEO tools focus on artefacts you can verify before publishing: how a title and description truncate in search results, what a shared social card looks like, whether a slug normalises cleanly, and whether your robots.txt and sitemap say what you meant. They work on text and URLs you paste rather than crawling a site, which keeps them fast and private.
Featured tools
Meta Tag Preview
SERP-style meta title and description preview.
- meta
- seo
- serp
- title
Open Graph Preview
OG card layout mocks and meta tag export.
- open-graph
- og
- seo
- social
Slug Generator
URL slugify with diacritic stripping, locally.
- slug
- url
- seo
- permalink
Robots.txt Generator
Form-based robots.txt builder with download.
- robots
- seo
- crawler
- sitemap
Sitemap XML Generator
Build basic sitemap XML from a URL list.
- sitemap
- xml
- seo
- urlset
Canonical URL Checker
Client-side canonical URL heuristics (no crawl).
- canonical
- seo
- url
- duplicate
Keyword Density Analyzer
Local text stats and keyword density (no snake oil).
- keyword
- density
- seo
- text
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Frequently asked questions
- Are these SEO tools really free?
- Yes, and they need no account. They run in your browser on the content you paste, so there is no crawl quota or usage tier to manage.
- Can they audit my live site?
- No. They do not fetch pages, so server-side issues, redirects, and rendering problems need a real crawler. Use these for drafting and reviewing instead.
- How do I stop a page from appearing in search?
- Serve a noindex directive on a crawlable page. Blocking it in robots.txt prevents the crawler from ever reading that directive, which is why blocked URLs can still be listed.
- What length should titles and descriptions be?
- Titles usually survive to around 60 characters and descriptions to roughly 150–160, but truncation is by rendered width. Meta Tag Preview shows where your text is cut.
- Does keyword density still matter?
- Not as a ranking target. Treat the analyser as a readability check for accidental repetition rather than a percentage to optimise toward.