I build AI-powered apps for clients — fast.

I'm Matej Repka — a Computer Science student at Matfyz Bratislava and a freelance developer. I turn ideas into polished products, with a focus on AI and rapid delivery.

View my work Start a project

Client projects delivered: 10+
Approach to building: AI-first
CS @ FMFI Comenius: Matfyz

Happy clients

React

Next.js

TypeScript

Node.js

Tailwind CSS

LLMs

AI Agents

AI Automation

Python

Supabase

Figma

Vercel

React

Next.js

TypeScript

Node.js

Tailwind CSS

LLMs

AI Agents

AI Automation

Python

Supabase

Figma

Vercel

Real projects, shipped for real clients.

A selection of websites and apps I've designed and built. Each one started as someone's idea and ended up live on the internet.

Web App · AI

How Cooked Am I?

2026

A playful, viral web app that gives a satirical estimate of how AI-proof your job really is — type in a job title and AI 'analyses' your chances, with a live survival leaderboard.

Web App
AI
Viral

Web App · Productivity

Marep School

2026

A personal organiser for students — keep tasks, schedule and upcoming tests in one place, so it's easy to stay on top of school and plan your own workload.

Web App
Productivity
Product

Web App · AI

Glumax

2026

An AI-driven calorie tracker — log meals and let AI estimate calories and nutrition, making everyday tracking fast and effortless.

Web App
AI
Product

Web App · Education

Rastlinky

2026

A study tool for pharmacy students in the botanics course at Comenius University — a card-based, image-to-name learning game that makes memorising plants quick and engaging.

Web App
Education
Learning

Web App · AI

DomanyChecks

2026

An AI-powered tool for checking domain name and social media username availability — with a built-in brand assistant that suggests brand names and automatically checks them across domains and socials.

Web App
AI
Product

Web · Campaign

50 let Jižního Města

2026

An anniversary campaign site marking 50 years since the first residents moved into Jižní Město, Prague's largest housing estate — sharing the celebration programme, local history and stories with the community.

Web Design
Development
Campaign

Web · Business

Kredit Consulting

2025

A clean, trust-building website for a financial consulting firm — clear services, confident calls to action, and a fast responsive build.

Web Design
Development
Branding

Web · Brand

Sarap

2025

Brand-forward business website with a strong visual identity and a conversion-focused layout built to win clients.

Web Design
Brand
Marketing

Hire one person. Ship like a team.

From a first idea to a live product, I cover the whole build — design, development and the AI that makes it smart.

AI integration & automation

Bring AI into your product or workflow — assistants, content generation, smart search and automations that quietly save real hours every week.

Chat & RAG assistants
Workflow automation
LLM-powered features

Web & app development

Fast, responsive websites and web apps built with modern tools. From a polished landing page to a full product — clean code, great UX.

Next.js / React
Responsive & accessible
SEO-ready

MVP in days, not months

Have an idea? I turn it into a working, shippable product quickly — so you can put it in front of real users and learn what matters.

Rapid prototyping
Ship & iterate
Founder-friendly

Design that converts

Clean, modern interfaces and brand visuals that build trust and turn visitors into clients. Design and build, handled by one person.

UI / UX design
Brand & visuals
Motion & polish

Have a project in mind?

Tell me what you're building — I usually reply within a day.

Let's talk

Creating since

elementary school

A developer who's been building things since school.

I'm a 19-year-old developer from eastern Slovakia, now based in Bratislava. My path started early — I picked up video editing in elementary school, and that curiosity kept snowballing into design, web development, programming and, most recently, AI.

Today I study Applied Informatics at FMFI Comenius University (Matfyz) while freelancing for clients around the world. Years of remote projects taught me the thing that matters most: understanding what someone actually needs, moving fast, and shipping work I'm proud of.

Right now I'm focused on building AI-powered apps and tools — the kind that quietly save people hours. If you have an idea, I can help you turn it into something real.

Bratislava, SlovakiaCS @ Matfyz (FMFI)Freelance, worldwideEnglish / Slovak

Design and development handled by one person
Genuinely fast delivery without cutting corners
Comfortable building with AI and modern tooling
Clear, honest communication from start to ship

Thoughts on building, AI & shipping fast.

All posts

BuildingJun 15, 2026

Why building internal, personal apps is the future of software

The economics of software just flipped. When an app can be built in an afternoon, it no longer has to serve millions to be worth it — it just has to serve you.

6 min read

Case studyJun 15, 2026

Case study: building 50letjiznihomesta.cz for a neighbourhood's 50th birthday

How a campaign site for the 50th anniversary of Prague's largest housing estate came together — from a pile of archive photos and local stories to a fast, living celebration hub.

6 min read

BuildingJun 15, 2026

From idea to MVP in a week: my fast build process

Speed isn't about cutting corners — it's about cutting the right things. My process for turning an idea into a working product, fast.

5 min read

Let's build something great.

Got an idea, a project, or just a question? Whether it's an AI tool, a website or a full app — I'd love to hear about it and usually reply within a day.

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