Developer Tool

Redirect Map Checker.

Paste your old-to-new URL mappings to catch redirect chains, loops, missing HTTPS, and temporary status codes — then export clean Next.js or Vercel redirect config. Runs entirely in your browser. How to use

Old → new URL map

One per line: from → to. Separators: ->, comma, tab, or 2+ spaces. Optional trailing status (301/302/307/308).

Paste your URL map (or load the sample) to generate redirect config.

301/308 generate permanent: true; 302/307 generate permanent: false. Runs entirely in your browser.