Contomatix Redirect Mapper: Match old URLs to new ones and get 301 rules, free

Hi Product Hunt! Every site move or URL change starts with the same chore: matching hundreds of old URLs to new ones by hand in a spreadsheet. I built the Redirect Mapper to take the first pass off your plate. Paste your old and new URLs and it matches each old page to its closest new page using the words in the path, marks weak matches for review, flags redirect chains and exports Apache or Nginx 301 rules plus a CSV. It is deliberately conservative. Low-confidence URLs are left unmatched instead of being sent to the homepage, and it only reads URLs, not page content, so treat the result as a first draft you check. Everything runs in your browser: nothing is uploaded and there is no signup. I would love feedback, especially on which rule formats you would want next.