I will fix react nodejs or javascript bugs in your web application


About this gig
Tried Fixing it Yourself? Now it's worse? Let's pretend that never happend!
Stuck on a bug for hours? I fix React, Node.js, Next.js, and JavaScript issues fast with a clear explanation of what was wrong and how it's fixed. No vague patches.
What I fix:
React rendering, state, and hook issues
Node.js / Express API errors
Database connection and query bugs
Authentication failures (JWT, OAuth)
CORS, 404, 500 errors
Deployment and build errors
Performance and memory issues
And Others
How it works: Share your code (GitHub, zip, or paste) + describe the problem I review and fix deliver with explanation.
Message me first so I can confirm I can help.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Saad
FULL STACK WEB DEVELOPER
- FromPakistan
- Member sinceMay 2022
- Last delivery6 months
Languages
English, Hindi
My Portfolio
FAQ
How do I share my code with you?
GitHub or GitLab link preferred — gives full project context for faster diagnosis. Zip file also accepted via Fiverr messages. Small components can be pasted directly in chat. GitHub gives the fastest fix turnaround.
What if you can't fix the bug?
Message me first with the bug description — I only accept orders I'm confident about. If complexity increases after starting, I communicate immediately and discuss scope or refund. I never deliver an unfixed order.
Do you fix bugs in frameworks other than React and Node.js?
Core expertise: React, Next.js, Node.js, Express, JavaScript, TypeScript, MongoDB, PostgreSQL. Vue.js and plain JS also covered. Not available: Python, Django, Laravel, Swift, or Kotlin. Message me to confirm.
Will you explain what was wrong after fixing it?
Always. Every delivery includes a written explanation: what the bug was, why it happened, what was changed, and how to prevent it. Understanding the fix is part of the service — not a paid extra.
Can you fix bugs caused by a library update or dependency conflict?
Yes. React 18+, Next.js 14/15, Node.js version conflicts — I handle these regularly. Package.json audit, version conflict resolution, and clean fix delivered. Most dependency bugs resolved same day.
My app works locally but breaks in production — can you fix that?
Yes — classic production bug. Usually caused by missing env variables, CORS misconfiguration, wrong Node version, or hardcoded localhost URLs. I diagnose and fix all production-only errors. Basic or Standard package.
Is this gig only for bugs or can you do small features too?
Focused on bug fixes and code review. For small features — new API endpoint, UI component, form — message me before ordering. I'll either fit it in this gig or create a custom offer with the right scope and price.
