Next.js app built with v0? Let’s review it.
Expert code review for Next.js apps built with v0. We find v0-specific bugs, fix Next.js security issues, and optimize performance. From $19.
v0 issues we find in Next.js projects
Problems specific to v0's code generation patterns when building Next.js apps.
No backend or API integration
v0 generates frontend components only. There's no database connection, API routes, authentication, or server-side logic — all of which need to be built separately.
Static mock data instead of real data
Components use hardcoded mock data for display. Connecting them to real APIs requires significant additional work to handle loading states, errors, and data fetching.
Components not connected to state
Interactive elements like forms, filters, and toggles look correct but don't actually do anything. State management needs to be wired up manually.
Accessibility gaps
While v0 uses shadcn/ui (which has good a11y defaults), custom components sometimes miss ARIA labels, keyboard navigation, and focus management.
Next.js issues we check for
Common Next.js problems that affect production readiness.
Unprotected API routes
Next.js API routes and server actions without authentication checks, allowing anyone to call them directly.
Server action data exposure
Server actions that return sensitive data to the client or don't validate user permissions before modifying data.
Incorrect middleware configuration
Auth middleware that doesn't cover all protected routes, uses wrong matchers, or can be bypassed with URL manipulation.
Missing ISR/SSG configuration
Pages that should be statically generated are server-rendered on every request, causing unnecessary load and slower responses.
Start with a self-serve audit
Get a professional review of your v0 Next.js project at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
Frequently asked questions
Can you review Next.js code generated by v0?
Yes. We regularly audit Next.js projects built with v0 and understand the specific patterns and issues it introduces. Our review covers security, performance, and deployment readiness.
What Next.js issues does v0 typically create?
Common issues in v0-generated Next.js code include: no backend or api integration, static mock data instead of real data, components not connected to state. Combined with Next.js-specific concerns like unprotected api routes and server action data exposure.
How do I make my v0 Next.js project production-ready?
Start with our code audit ($19) to get a prioritized list of issues. For v0-built Next.js projects, the typical path is: fix security gaps, address Next.js-specific performance issues, then configure deployment. We provide a fixed quote after the audit.
How much does it cost to review v0-generated Next.js code?
Our code audit starts at $19 and covers security, performance, architecture, and deployment readiness. For fixes, our Fix & Ship plan is $199. Larger projects get a custom fixed quote — no hourly billing or surprises.
Related resources
Need help with your v0 Next.js project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.