SEO Migration pages mapper

URL Mapper – Fuzzy Old→New Matcher (Client‑Side)
URL Mapper – Fuzzy Old→New Matcher

Client‑side tool that maps old URLs to new URLs using blended similarity (Levenshtein, token Jaccard, char‑3gram), with boosts for matching slugs/extensions. Nothing leaves your browser.

Privacy‑friendly · No uploads

Old URLs

CSV should have a column named url (or use first column). TXT: 1 URL per line.

New URLs

Same format as left.

Settings

Tip: press R to rerun
Scoring: 0.50× Levenshtein‑sim + 0.30× token‑Jaccard + 0.20× char‑3gram · Boosts: slug +0.08, extension +0.04, optional section bias · Depth penalty for large path differences. All client‑side.

URL Mapper – Fuzzy Old→New Redirect Generator

Simplify your next website migration with our URL Mapper. This free, privacy-friendly tool helps you automatically match old URLs to their closest new counterparts using advanced similarity scoring. Just paste or upload your lists of old and new URLs, and the tool will instantly suggest the best matches with confidence scores.

With one click, you can export ready-to-use CSV mappings, Apache .htaccess rules, or an NGINX map file to keep your redirects clean and your SEO value intact. Everything runs entirely in your browser — no data is uploaded or stored — making it a safe and efficient way to handle migrations of any size.