I will fix any HTML, javascript, and CSS bugs


About this gig
Is your front-end broken or just not looking right?
Buttons not clicking? Layout issues on mobile? JavaScript errors causing your conversion rate to plummet?
I am your guy. I will dive deep into your HTML, CSS, and JavaScript to ensure everything works exactly as it should. I offer unlimited revisions until your website behaves exactly as envisioned.
What I can fix and improve:
- Broken layouts (Flexbox/Grid behaving badly )
- CSS styling issues & responsiveness problems
- JavaScript errors & console warnings
- Forms not submitting
- Navigation/menu glitches
- Animations not working
- Cross-browser issues
- Small UI/UX annoyances
- Slow load and unoptimized JavaScript
- Interactive features bugs or their unresponsiveness
I'll make sure to:
- Find the root cause
- Fix it properly
- Keep your code clean
- Make sure bugs fix doesn't break something else
If necessary, I'll also explain what went wrong, so you're not stuck in the same loop later.
I have 10 years of industry experience, having worked on small, medium, and enterprise-level websites. I am confident I can deliver the results needed to make your website function exactly as you envisioned.
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 Duc Trung
Web expert specialising in creating premium and modern online experience
- FromPoland
- Member sinceSep 2025
- Avg. response time2 days
Languages
English, Polish, Vietnamese
My Portfolio
Other Website Maintenance Services I Offer
FAQ
What type of bug can you fix?
Any front-end issues, such as HTML, CSS, and JavaScript bugs.
What will happen if the bug still persists after some time?
I will update my solution and provide a long term fix without additional cost.
What is your approach to bug fixing?
I will try to reproduce the bug, then isolate the cause. After analysis, I will work on the solution that won't break any existing solution. I will use the tests to see whether the issue still reappears. If not, I will confirm that the bug fix is complete and deploy if needed.
Will you provide support with testing and quality assurance?
Yes, I will provide necessary support to ensure that the bug will not reappear or didn't break any existing feature and implementation.

