React development, security, and deployment services
React is the most common framework in AI-generated apps. Cursor, Lovable, Bolt, and v0 all default to React - meaning React codebases are where we find the most issues.
Common React issues we find
Real problems from React codebases we've reviewed.
XSS via dangerouslySetInnerHTML
AI tools use dangerouslySetInnerHTML to render dynamic content without sanitization, allowing script injection.
Exposed environment variables
Sensitive keys placed in NEXT_PUBLIC_ or REACT_APP_ prefixed variables, making them visible in the browser bundle.
Unnecessary re-renders
Missing React.memo, useMemo, and useCallback cause components to re-render on every parent update, degrading performance.
Unhandled promise rejections
Async operations in useEffect without proper error handling crash silently or show raw error messages.
Missing error boundaries
A single component error crashes the entire application. No fallback UI to gracefully handle failures.
Large bundle size
Importing entire libraries, unused dependencies, and no code splitting result in slow initial page loads.
Hydration mismatches
Server-rendered HTML doesn't match client-rendered output, causing layout shifts and console errors.
Missing production optimizations
Development-mode React in production, no source map configuration, and unminified bundles.
React production checklist
Key checks before deploying your React app.
No sensitive data in client-accessible environment variables
All user inputs sanitized before rendering
Error boundaries wrap major page sections
React.memo used for expensive components
Code splitting with React.lazy for route-level components
Production build mode enabled
Source maps configured (not publicly exposed)
Image optimization with next/image or similar
Proper loading and error states for async operations
No console.log statements in production
Not sure if your app passes? Our code audit checks all of these and more.
Our React services
Security Review
Manual security analysis of your application covering API endpoints, authentication, data access, and infrastructure configuration.
Fix Bugs
We diagnose and fix bugs in AI-generated codebases, from crashes and data issues to broken integrations.
Refactor Code
Reduce duplication, improve structure, and make your codebase maintainable without breaking existing functionality.
Performance
Identify and fix performance bottlenecks, from slow page loads and unoptimized queries to missing caching.
Our services
Get a professional review of your React project.
Security Review
Security Review
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteSecurity Review
Full Pentest
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Fix Bugs
Bug Fixing
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteFix Bugs
Ongoing Support
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
Refactor Code
Refactoring
Expert engineer works on your project directly. Fixed scope, fixed price, no surprises.
Request a QuoteRefactor Code
Full Rewrite
Enterprise-grade engagement tailored to your needs. Dedicated engineer, ongoing support.
All projects start with a free consultation. We scope your project and provide a fixed quote before any work begins.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear quote
We respond within 24 hours with scope, timeline, and a fixed price.
Launch with confidence
We get to work, deliver results, and stick around to help.
Frequently asked questions
Is React code from AI tools production-ready?
Usually functional but not production-ready. According to research by Veracode, roughly 45% of AI-generated code contains security vulnerabilities. Common gaps in AI-generated React code include missing error boundaries, no performance optimization (memo, useMemo, lazy loading), and XSS vulnerabilities from improper user data handling.
Should I use React or Next.js?
For most apps, Next.js is the better choice - it adds server-side rendering, routing, and API routes on top of React. Most AI tools already default to Next.js.
Can you optimize my React app's performance?
Yes. We profile your app, identify unnecessary re-renders, optimize bundle size, add code splitting, and implement caching strategies.
How do you audit React code?
We review component architecture, state management patterns, API interaction security, error handling, and performance characteristics.
Related resources
Guides
Need help with your React project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.