Software house from Poland

We build software that powers your business

We design and build web applications, mobile systems and solutions based on artificial intelligence — from strategy and UX to deployment and growth.

32+
completed projects
8 years
in the technology market
5.0 ★
average client rating
0+
completed projects
0
years of experience in the IT industry
0+
technologies in our stack
0%
of clients recommend our services
Web applicationsUI / UX DesignWebsitesArtificial intelligenceSaaS systemsDevOpsMobile applicationsAutomationE-commerceMarketing & SEODesign SystemAPI integrationsCloud
Process

Your recipe
for success

01

Consultation and strategy

We get to know your business, goals and challenges. Together we define the project scope and choose technologies that deliver a real return on investment.

Discovery workshop · Roadmap
02

Design and UX

We create mockups and an interactive prototype. We design an intuitive interface that we test with users before writing the first line of code.

Wireframe · Prototype · Design System
03

Development and deployment

We code in short iterations, regularly showing progress. We deploy the finished product on a stable, scalable cloud infrastructure.

Sprint · Code Review · Deploy
04

Growth and support

After launch we stay with you. We monitor, optimize and grow the product with new features — so it keeps staying ahead of the competition.

Monitoring · Optimization · New features
Technologies

A stack you can trust

We rely on proven, modern technologies that guarantee performance, security and easy growth of your product.

Frontend

Interfaces that make an impression
React

React

We build interactive, fast web applications.

Next.js

Next.js

Fast, SEO-friendly applications with server-side rendering.

TypeScript

TypeScript

Static typing that reduces bugs and makes code easier to develop.

Backend

A solid foundation for the application
Node.js

Node.js

A high-performance backend and API handling the product business logic.

NestJS

NestJS

Scalable, modular backend architecture with a clear structure.

PHP

PHP

A reliable backend language powering dynamic web applications.

DevOps & Cloud

Stable, scalable deployments
Kubernetes

Kubernetes

Container orchestration and automatic scaling under load.

Docker

Docker

Containerization for consistent environments across development and production.

Terraform

Terraform

Infrastructure as code for repeatable, automated cloud provisioning.

AI & Tools

Automation and collaboration
OpenAI

OpenAI

AI integrations: chatbots, automation and content analysis.

Claude

Claude

Advanced AI assistance for automation, analysis and content generation.

GitHub

GitHub

Version control and CI/CD for secure, team-based development.

Trusted partners
ovh.webp
gcloud.webp
aws.webp
vercel.webp
Why us

Reasons to choose Just Site

We are not just another contractor. We are a technology partner who takes responsibility for the result and treats your product as our own.

Start cooperation

Individual approach

We treat every project separately — we tailor solutions to your goals, not the other way around.

Modern technologies

We rely on a proven, up-to-date stack that guarantees performance, security and easy growth.

Timeliness

We deliver 98% of projects on time. We plan stages clearly and keep our commitments.

Effective communication

We regularly show progress and speak in plain language — without technical jargon.

Post-deployment support

Launch is the beginning for us, not the end — we support your growth, optimization and ongoing needs.

5.0★

Average rating from clients who trusted us and keep coming back with new projects.

Reviews

What our clients say

Read reviews from those who have already trusted us.

★★★★★5,0
Top-notch professionalism. The entire frontend was done exactly as requested. The prices are also great. Highly recommended.
Graf
Graf
★★★★★5,0
Great collaboration, pleasant atmosphere, professionalism.
Stowarzyszenie LGD "Gorce-Pieniny"
Stowarzyszenie LGD "Gorce-Pieniny"
★★★★★5,0
I recommend 100%, professionalism, commitment, excellent execution.
N
Norwood
★★★★★5,0
We are very satisfied with the service performed.
Bus-Koncert
Bus-Koncert
★★★★★5,0
I highly recommend them—beautifully crafted website. Attention to detail, seamless collaboration.
Bezuma
Bezuma
★★★★★5,0
Top-notch professionalism. The entire frontend was done exactly as requested. The prices are also great. Highly recommended.
Graf
Graf
★★★★★5,0
Great collaboration, pleasant atmosphere, professionalism.
Stowarzyszenie LGD "Gorce-Pieniny"
Stowarzyszenie LGD "Gorce-Pieniny"
★★★★★5,0
I recommend 100%, professionalism, commitment, excellent execution.
N
Norwood
★★★★★5,0
We are very satisfied with the service performed.
Bus-Koncert
Bus-Koncert
★★★★★5,0
I highly recommend them—beautifully crafted website. Attention to detail, seamless collaboration.
Bezuma
Bezuma
★★★★★5,0
Top-notch professionalism. The entire frontend was done exactly as requested. The prices are also great. Highly recommended.
Graf
Graf
★★★★★5,0
Great collaboration, pleasant atmosphere, professionalism.
Stowarzyszenie LGD "Gorce-Pieniny"
Stowarzyszenie LGD "Gorce-Pieniny"
★★★★★5,0
I recommend 100%, professionalism, commitment, excellent execution.
N
Norwood
★★★★★5,0
We are very satisfied with the service performed.
Bus-Koncert
Bus-Koncert
★★★★★5,0
I highly recommend them—beautifully crafted website. Attention to detail, seamless collaboration.
Bezuma
Bezuma
★★★★★5,0
Top-notch professionalism. The entire frontend was done exactly as requested. The prices are also great. Highly recommended.
Graf
Graf
★★★★★5,0
Great collaboration, pleasant atmosphere, professionalism.
Stowarzyszenie LGD "Gorce-Pieniny"
Stowarzyszenie LGD "Gorce-Pieniny"
★★★★★5,0
I recommend 100%, professionalism, commitment, excellent execution.
N
Norwood
★★★★★5,0
We are very satisfied with the service performed.
Bus-Koncert
Bus-Koncert
★★★★★5,0
I highly recommend them—beautifully crafted website. Attention to detail, seamless collaboration.
Bezuma
Bezuma
FAQ

Frequently asked questions

Didn't find an answer? Write to us — we'll reply within 24 hours.

Ask a question
How much does it cost to create an app or website?+
We price each project individually, as the cost depends on the scope, complexity, and chosen technologies. After a free consultation, we prepare a transparent quote broken down into stages — with no hidden fees.
How long does it take to complete a project?+
A simple website can usually be completed in up to 7 days, while a more advanced web application typically takes 2 to 4 months. We work in short iterations, so you can regularly see the progress and influence the direction of the project.
Do I receive full rights to the code after the project is completed?+
Yes. Once the project is settled, we transfer full ownership of the source code to you, along with access to the entire infrastructure. We don’t make you dependent on us — the product belongs 100% to you.
Do you provide support after launch?+
Of course. After launch, we monitor the product’s performance, respond to requests, and continue developing it with new features. We offer flexible support packages tailored to your needs.
What technologies do you work with?+
We most often rely on a proven, modern stack: React, Next.js, and TypeScript on the frontend; Node.js, NestJS, and PostgreSQL on the backend; and Docker, Kubernetes, and AWS in DevOps. We always choose technologies based on the goals of each specific project.
Do you work with clients outside Poland?+
Yes, we deliver projects remotely for clients from Poland and abroad. We communicate online, regularly present progress, and make sure that distance has no impact on the quality of our cooperation.

Outpace the competition

Let's talk about your project — together we'll turn goals into finished solutions.

Become a client