You will get Debug & fix React issues (UI, state, API calls, routing errors)
Project details
I will help you debug and fix issues in your React application (UI, state, API, routing, performance) quickly and professionally. With experience building and debugging modern React applications using Hooks, Axios, React Router, and API integrations, I focus on identifying the root cause and delivering clean, stable fixes.
Whether it's a UI glitch, component issue, state bug, or an API error — I will make sure your application works smoothly again.
Whether it's a UI glitch, component issue, state bug, or an API error — I will make sure your application works smoothly again.
Programming Languages
HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$20
|
Standard
$40
|
Advanced
$70
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 1 | 1 | 2 |
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $25
Additional Revision
+$10Frequently asked questions
About Khanittha
Java Spring Boot Developer | API Errors Fix | Debugging | Performance
Chiang Rai, Thailand - 8:53 pm local time
I help clients with:
✔ Fixing Spring Boot errors & exceptions
✔ Debugging REST APIs (400, 401, 403, 500 issues)
✔ Repairing JWT/OAuth2 authentication
✔ Solving CORS, routing, and request/response bugs
✔ Improving backend logic & performance
✔ Cleaning/optimizing existing code (monolithic or microservices)
Why clients trust me:
Clear communication
Fast and reliable bug fixing
Clean, maintainable code
Strong debugging ability (root-cause analysis)
Flexible with small tasks, short-term contracts, and long-term support
Based in Thailand, preparing to relocate to Germany — available worldwide for remote work.
Steps for completing your project
After purchasing the project, send requirements so Khanittha can start the project.
Delivery time starts when Khanittha receives requirements from you.
Khanittha works on your project following the steps below.
Revisions may occur after the delivery date.
Investigation & Reproduce Issue
I analyze your code, reproduce the issue, identify the root cause, and confirm all affected components or API interactions.
Apply Fix & Improve Stability
I fix the issue, refactor code if necessary, and ensure it doesn’t affect other parts of your React application.