Fix TypeScript errors in your React or Next.js app

Your TypeScript build is failing and those red underlines are everywhere. You added TypeScript to make your codebase safer and now it feels like it is fighting you at every turn. The good news is that every single one of those errors has a clean fix and I will take care of all of them today.

I am a Full Stack MERN Developer with 15 months of professional experience writing and debugging TypeScript across React, Next.js and Node.js applications. I work with TypeScript daily and I know exactly how to read what the compiler is telling you and fix it the right way without resorting to any as unknown as any hacks that just hide the problem.

Here is what I fix:
Type errors in React component props and state definitions
Generic type mismatches causing build failures across your project
Next.js specific TypeScript errors in page props, API routes and middleware
Strict mode type errors after enabling stricter TypeScript settings
Third party library type definition conflicts and missing type declarations
Async function return type errors and Promise type mismatches
Union and intersection type errors causing unexpected type narrowing issues
TypeScript configuration errors in tsconfig causing incorrect behaviour
Type errors appearing after upgrading React, Next.js or TypeScript versions
Module import errors caused by incorrect type exports or missing declarations

What I deliver is not just a passing build. I fix each error with proper types, make sure your tsconfig is set up correctly for your project and leave your codebase in a state where TypeScript is actually helping you rather than blocking you.

Here is what you will receive:
A fully passing TypeScript build with zero type errors
Clean proper types with no unsafe workarounds
A short explanation of the most important fixes made
Free re-fix if new errors appear from the same root cause within three days

Share your repo or paste your error list and I will get started immediately.