I will fix bugs in react, nextjs, nodejs, and mern apps


About this gig
Stuck with a frustrating bug in your React, Next.js, or MERN stack app? I'll find the root cause and fix it cleanly, properly, and with testing.
I specialize in fixing React.js, Next.js, Node.js, Express.js, and MongoDB bugs and errors. Whether you're facing a broken feature, API error, console error, authentication issue, database problem, unexpected crash, or deployment issue, I'll diagnose the problem and fix it properly, not just apply a temporary patch.
What I can fix:
- React & Next.js bugs
- Node.js & Express.js errors
- API & backend issues
- MongoDB & database problems
- Authentication & JWT issues
- UI & JavaScript errors
- Build & deployment errors
- Broken features & unexpected crashes
What you get:
- Proper bug investigation
- Clean & tested fixes
- Root-cause debugging
- Clear communication
- Fast turnaround
Need multiple bugs fixed? Choose the package that fits your needs or add Additional Bug Fixes.
I have hands-on experience building MERN and Next.js applications, SaaS dashboards, and POS and inventory systems, so I can understand your codebase quickly and troubleshoot efficiently.
Have an error right now? Send me the details, screenshot, or GitHub code, and let's get it fixed.
Get to know Danish B
Full Stack MERN Developer
- FromPakistan
- Member sinceFeb 2025
- Avg. response time1 hour
Languages
Urdu, English
My Portfolio
FAQ
What information do you need from me to start?
Please share your GitHub repo link (or code files) and describe the bug — a screenshot or error message helps me diagnose it faster.
Can you fix more than the bugs included in the package?
Yes! Just add the "Additional bug fix" extra for each extra bug — you can add up to 19 extra fixes on top of the base package.
Do you fix bugs in deployed apps or only local projects?
Both — I can work with local repositories or deployed apps (Vercel, Render, etc.), as long as I have access to the code or environment.
What if the bug takes longer than expected to fix?
I'll always communicate with you first if a bug turns out to be more complex than expected, before any extra time or cost is added.

