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7 free Technical SEO tools

Free technical SEO tools for cleaner, faster sites

Generators and checkers for the fiddly parts of technical SEO: canonicals, hreflang, structured data, migration redirects and image weight. Each one runs entirely in your browser.

  • Free
  • No sign-up
  • Runs in your browser

  • Hreflang Tag Generator

    Build a complete, reciprocal set of hreflang tags for every language and region version of a page, x-default included.

  • Canonical Tag Generator

    Create a rel="canonical" tag for any URL, plus the HTTP header version for PDFs, images and other non-HTML files.

  • Bulk 301 Redirect Generator

    Turn a list or CSV of old and new URLs into ready-to-paste 301 redirects for Apache, Nginx or WordPress.

  • Bulk SEO Checker

    Check status codes, robots tags, canonicals, titles, meta descriptions and H1s for a whole list of URLs in one pass.

  • FAQ Schema Generator

    Create a styled FAQ accordion with matching FAQPage JSON-LD, ready to paste into WordPress, Shopify or any site.

  • Bulk WebP Converter

    Convert batches of JPG, PNG and BMP images to WebP in your browser, see the size saved and download them as a ZIP.

  • SVG Optimiser

    Strip editor bloat from SVG files, round path precision and see the exact bytes saved, with a live preview.

About our Technical SEO Tools

Technical SEO problems rarely announce themselves. A hreflang set missing its return tags, a canonical pointing at a redirect or a migration with half its old URLs left unmapped will quietly drain rankings for months before anyone notices.

These tools take the error-prone, copy-and-paste jobs off your plate and produce markup you can drop straight into a template or hand to a developer. They're built for SEOs who know what they need and want it done properly in under a minute.

FAQs

Frequently asked questions

Are these technical SEO tools really free?

Yes. There are no usage limits, no accounts and no premium tier. You can use the output on client work without attribution.

Is my website data sent anywhere?

No. Every tool processes your input inside your own browser using JavaScript. Nothing you paste or upload reaches our servers.

When do I need a full technical SEO audit instead?

Tools fix individual problems you already know about. If traffic has dropped without an obvious cause, a migration is coming up or the site has thousands of URLs, a crawl-led audit will find issues no single generator can.

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Work with The Search Foundry

Need the whole site checked properly?

Our technical SEO audits crawl every URL, prioritise fixes by revenue impact and come with a developer-ready action list.

Book a technical SEO audit Or browse all free tools