Routefence — check a Next.js App Router route's server/client split before it ships, then fix it

Routefence: paste the files behind one Next.js App Router route and get a free in-browser check of its server/client split and data flow - hooks and onClick in Server Components, functions passed into Client Components, async Client Components, database clients in the client bundle, params, searchParams, cookies() and headers() read without await on Next.js 15+, Server Actions that write with no authorization check, redirects swallowed by try/catch, Pages Router leftovers - then a paid audit with exact edits per finding, or the whole fixed files, re-checked by the page. Derived from @wshobson/nextjs-app-router-patterns by Seth Hobson (wshobson/agents, MIT). Next.js is a trademark of Vercel, Inc.; Routefence is not affiliated with or endorsed by Vercel.