Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix react nextjs supabase and vercel bugs
Zaki
About this gig
Got a bug that is stopping your website or web app from working properly? Ill help you find the cause and fix it cleanly.
I provide focused bug fixing and debugging for modern JavaScript web applications, including React, Next.js, Node.js, Express.js, Supabase and Firebase.
I can help fix:
JavaScript and TypeScript errors
React and Next.js bugs
Responsive/mobile layout issues
API and integration errors
Supabase and Firebase issues
Authentication and database problems
Broken forms, buttons and functionality
Build and deployment errors
Performance-related issues
What you can expect
Root-cause investigation not just a temporary workaround
Clean and maintainable fixes
Testing after the fix
Clear communication throughout the order
Fast delivery for small issues
Your existing code and design will be respected
How I work
I first reproduce the issue and identify its root cause. I then make the smallest reliable fix necessary, test the affected functionality, and explain what was changed.
Not sure which package to choose?
Send me a message with the error, screenshot, or a short explanation of the problem. I can review the scope and recommend the appropriate package before you order.
Lets ge
Get to know Zaki
Zaki
Full Stack Web Developer and AI SaaS Specialist
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Urdu, Spanish
I help businesses and founders fix, improve, and complete modern web applications.
I work with React, TypeScript, APIs, databases, authentication, SaaS features, AI integrations, and deployment. I can help troubleshoot broken features, resolve build and deployment issues, improve existing applications, and integrate services into your project.
I focus on understanding the problem first, keeping existing functionality intact, and delivering clean, reliable solutions.
Have an unfinished or broken web app? Send me the details and I'll review the requirements before we get started.
My Portfolio
FAQ
What information do you need before starting?
Please send a description of the issue, screenshots or error messages, the technology used, and relevant code/repository access if required. For complex issues, message me before ordering.
What counts as one small bug in the Basic package?
A small bug is one clearly defined issue with limited scope, such as a broken button, minor JavaScript error, styling/responsive issue, or similar isolated problem.
Can you fix React and Next.js applications?
Yes. I can troubleshoot React, Next.js and JavaScript/TypeScript applications, including frontend behaviour, API integrations, build issues and related errors.
Can you fix backend, API, Supabase or Firebase issues?
Yes. I can investigate Node.js/Express APIs, authentication, database connections, Supabase, Firebase and integration-related problems. Please contact me first for larger backend issues.
Will you test the website after fixing the bug?
Yes. I test the affected functionality after making the fix to confirm the reported issue is resolved and to reduce the chance of introducing regressions.
