---
title: "I will fix a bug in your JavaScript, React or Node.js web app"
url: https://zinnhub.com/zinns/i-will-fix-a-bug-in-your-javascript-react-or-node-js-web-app/
description: "I fix bugs in web apps and sites: broken forms and buttons, broken login, layout that fell apart, console errors, a project that stopped building after an update. Stack: JavaScript, TypeScript, Node.js on the server, React and Next.js on the…"
published: 2026-09-30T08:12:44+00:00
modified: 2026-09-30T08:12:44+00:00
language: en-GB
---

# I will fix a bug in your JavaScript, React or Node.js web app

I fix bugs in web apps and sites: broken forms and buttons, broken login, layout that fell apart, console errors, a project that stopped building after an update. Stack: JavaScript, TypeScript, Node.js on the server, React and Next.js on the front end, plus plain HTML/CSS/JS. I also work with code that was written in a hurry or generated with AI tools.

Diagnosis and one reproducible bug fixed, delivered as a PR or a patch, plus a written summary of what changed. If my fix doesn’t hold, I come back and finish it. No extra charge. If the problem doesn’t reproduce from your steps, or the fix turns out to be bigger than what you ordered, I say so before I start and we cancel the order rather than let the clock run.

What I need from you: repository access or a project archive, and the steps to reproduce the problem (what you click, what you expect, what happens instead). A staging URL helps.

Everything runs in writing. On multi-day work you get a written update at the end of each day, and I answer fast. No calls.

Bigger than a bug, or need it sooner? Ask in the order chat and I’ll send a custom offer. Faster delivery is double the price.