I will fix react or nextjs bugs, errors, and frontend issues

K
kardeploy_y
K
kardeploy_y
Kar Y.
fix react or nextjs bugs, errors, and frontend issues
Full Screen
fix react or nextjs bugs, errors, and frontend issues
Full Screen
Full Screen
fix react or nextjs bugs, errors, and frontend issuesfix react or nextjs bugs, errors, and frontend issuesfix react or nextjs bugs, errors, and frontend issues

About this gig

Need help fixing your React or Nextjs website fast?


I help startups, creators, and businesses solve frontend bugs, deployment problems, UI issues, and performance errors professionally.


I can help with:

React bugs

Nextjs build errors

Vercel deployment issues

Broken UI components

Responsive design fixes

API integration bugs

Hydration errors

Environment variable setup

Frontend debugging

Speed optimization


Technologies:

React, Nextjs, JavaScript, TypeScript, Node.js, Tailwind CSS, Firebase, Supabase, Vercel, GitHub, and REST APIs.


Why work with me?

Fast communication

Clean and scalable fixes

Quick turnaround

Modern development practices

Business-focused solutions


Please message me before placing large or complex orders.

  • Website type

    • Business

  • Programming language

    • HTML & CSS
    • JavaScript
    • TypeScript
    • React
    • Node.js

  • Website features

    • Social media
    • Analytics
    • Form
    • Chat
    • Portfolio
    • Dashboard
    • Landing page
    • Blog
    • User Authentication
    • Admin Panel
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 Kar Y.

Kar Y.

Full Stack Web Developer and Deployment Specialist

  • FromHong Kong
  • Member sinceMay 2026
  • Avg. response time1 hour

  • Languages

    Chinese, English
Hi, I’m Kar — a full-stack web developer and deployment specialist focused on modern, scalable, and high-performance web solutions. I help businesses, startups, and creators build and deploy websites, web apps, AI integrations, APIs, and automation systems professionally. Tech stack: React, Next.js, JavaScript, TypeScript, Node.js, Firebase, Supabase, Vercel, Cloudflare, GitHub, and REST APIs. I focus on clean UI/UX, fast communication, reliable support, and smooth deployment workflows that help clients launch faster online.

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