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Is your Next.js app secure?

Built your Next.js app fast? Ship it without spending another week on security testing. Next.js is the default for AI-built web apps. The framework is excellent — but apps built on it, especially AI-generated ones, very commonly leak server secrets to the client and ship server actions with no auth. Opviva is the agent that checks, proves, and fixes your Next.js app.

Free · no signup · we never store your source code

  • We prove vulnerabilities by reproducing them — not guesses
  • Tamper-evident record of what your AI agents do
  • We never store your source code

Common security gaps in Next.js apps

Secrets leaked to the client

Server-only values get prefixed NEXT_PUBLIC_ or read in client components, shipping them in the browser bundle for anyone to read.

Unprotected server actions & route handlers

Generated server actions and API routes run without auth or authorization checks, so any caller can trigger privileged operations.

Missing security headers & middleware

CSP, HSTS, and auth middleware are absent unless added by hand, leaving the app open to XSS and unauthorized access.

The agent that checks, proves, and fixes your Next.js app

  • Tell it your app’s URL — the free scan grades your live app 0–100 in seconds, no code access needed.
  • Connect GitHub and it reasons about your repo for deeper, fix-ready findings.
  • It proves each exploit is real on the Evidence Canvas, then opens the fix as a pull request you approve.
  • Turn on 24/7 monitoring and it keeps watching after launch — re-checks and uptime so new issues get caught and closed.

Next.js security — ask the agent

Is my Next.js app secure?

Not by default — the most common Next.js mistakes are leaking server secrets to the client (NEXT_PUBLIC_) and unauthenticated server actions. Paste your app's URL into Opviva for a free security grade in seconds.

How do I stop my Next.js app from leaking secrets to the client?

Opviva's agent inspects your live bundle for exposed server secrets and NEXT_PUBLIC_ leaks, grades your app free, and opens a fix that moves them server-side.

Can Opviva secure my Next.js server actions?

Yes — the agent proves which actions and route handlers are callable without auth, then opens reviewed pull requests that add the checks for you to approve.

How do I secure my Next.js app?

Start with a free Opviva scan of your live Next.js app — it grades you 0–100 and lists exactly what's exposed. Then connect GitHub so Opviva can open reviewed pull requests that move secrets server-side, add access control, and set security headers, and turn on 24/7 monitoring so it keeps watching after launch.

Is it safe to launch a Next.js app to production?

Not until it's checked. AI-generated apps frequently ship with exposed keys, missing access control, and no security headers. Run Opviva's free scan first (no signup), fix what it finds, and turn on continuous monitoring so new issues are caught automatically.

Ask Opviva to check your Next.js app — free

Tell it your URL and see what it finds in seconds. Plain-English grade, no signup.

Scan my app free →