I will build a custom web app with nextjs and react


About this gig
Custom web application built from scratch with Next.js and React.
Tired of slow, outdated web tools that don't fit your workflow? I build modern web applications that are fast, scalable, and designed for your specific needs.
What's included:
- Custom web app built with Next.js, React, and TypeScript
- Database integration with Supabase/PostgreSQL for secure data handling
- User authentication, role-based access, and session management
- Clean, responsive UI with Tailwind CSS works on every device
- Production-ready code you fully own no monthly platform fees
Why work with me:
- Custom code, not no-code templates your app scales with your business
- Built the same stack used by Netflix, Notion, and TikTok
- GDPR-compliant architecture from day one
- Fast, clear communication throughout the project
My process:
- We discuss your goals and I create a detailed project scope
- I build your app with regular progress updates
- You receive a fully deployed app with documentation and support
Every app is built with clean, maintainable code. No bloated frameworks, no vendor lock-in. You own everything.
Message me before ordering let's find the right solution for your project.
Get to know Sebastian T
AI Dev and Automation Expert: Custom AI Tools, Web Apps, Business Automation
- FromGermany
- Member sinceDec 2023
- Avg. response time2 days
Languages
English, German
My Portfolio
FAQ
What tech stack do you use?
Next.js, React, TypeScript, and Tailwind CSS for the frontend. Supabase with PostgreSQL for database and authentication. Deployed on Vercel or your preferred hosting.
Can you integrate third-party APIs?
Yes. I've worked with payment systems, AI models, email services, and CRM tools. If it has an API, I can connect it.
Do I own the source code?
Yes, 100%. The full source code is included in every package. You can modify, extend, or hand it off to another developer anytime.
Will my app work on mobile?
Every app I build is fully responsive - desktop, tablet, and mobile out of the box.
Do you offer support after delivery?
Revisions are included in every package. For ongoing maintenance after delivery, we can discuss a support plan.

