Vulcode

Quality of Tomorrow Available Today. Specialists with Years of Experience. Scalable, Readable, High-Quality Code. Trusted by 400,000+ Developers. Quick, Affordable and Solid. Over 5 Million Lines of Code Since 2020. You Talk to Whoever Writes the Code. Free Quote Within an Hour. Code and Docs You Own.

VulCode is a Polish software house with years of experience. Since 2020 it has been delivering high-quality software and has written over 5 million lines of code. It specialises in websites, panels, dashboards and applications, as well as building scalable platforms. It actively contributes to dozens of open source projects.

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Our Services

Landing Page & One-pager

Landing Page & One-pager

Converting single-page sites that turn visitors into customers. Fast, mobile-optimized for SEO and conversion. Ready in 1–3 weeks.

Delivery time 1–3 weeks
Core Web Vitals optimization
90 days post-deployment support
Custom quote
View offer
Company Website

Company Website

Multi-page sites with blog, CMS and multi-language support. Your brand in full glory - elegant, professional, manageable without a developer.

CMS panel included
On-page SEO implementation
60 days post-launch support
Custom quote
View offer
Panels & Dashboards

Panels & Dashboards

Custom panels and dashboards tailored to your process. Clear interfaces, real-time data, full control over what matters.

Real-time data
Reports and PDF/CSV export
Team training included
Custom quote
View offer
SaaS Platforms & Stores

SaaS Platforms & Stores

Cloud applications and e-commerce stores built with scalability in mind. From simple MVP to thousands of users without architectural rebuilds.

Architecture built for scale
Payment gateway integration
90 days post-launch support
Custom quote
View offer
Mobile Applications

Mobile Applications

Native applications for iOS and Android. Smooth, polished, integrated with your backend system. React Native or Flutter.

iOS and Android from one codebase
App Store and Google Play publishing
60 days post-release support
Custom quote
View offer
Desktop Applications

Desktop Applications

Software for Windows and Linux. Internal tools, production apps, employee systems - without browser compromises.

Windows and Linux support
Installer ready for distribution
Automatic updates (auto-update)
Custom quote
View offer

Didn't find what you're looking for?

We have much more - AI, security audits, developer outsourcing. Browse See all offers.

See all offers

About Us

Vulcode is a Polish development studio. We build products that truly work - without compromising on quality or deadlines.

Vulcode
Quality

Every line of code goes through code review. We never deliver something we would be ashamed of.

As fast as possible? With us it's doable.

We offer ready-made platforms that run your whole company - live from day one, on a monthly subscription instead of a big quote.

Quick Start

A ready platform to run your company. It works right away, out of the box - no weeks of work or rollout.

Minimal budget

No more spending thousands to start. Begin for pennies and watch your business grow.

Everything in one place

Everything handled from a single panel. Simple, intuitive and clear - you know how to use it at a glance.

Need more?

As your needs grow, the panel grows too. You can always move smoothly to a dedicated project, or order an extra feature in your panel.

Leave the tech to us

Hosting, updates, technical setup, backups and monitoring... all on us. Don't spend money where you don't have to.

Support, not a chatbot

Talk to real people who know your system and know how to help. We're here to keep everything running smoothly when you need it most.

Selected Works

See what we can do. Examples of our recent work where we combined thoughtful architecture with top-tier design.

Landing pages & websites

Landing pages & websites

Online platforms

Online platforms

Mobile apps

Mobile apps

Desktop apps

Desktop apps

Integrations & automations

Integrations & automations

Open source contributions

Open source contributions

Latest Posts

Articles about software development, optimization, and modern system solutions.

Technology
API integration: how to connect your website, online store or admin panel to ERP, CRM, accounting and payments – DualFroz - VulCode CEO
24 min read5 days ago

API integration: how to connect your website, online store or admin panel to ERP, CRM, accounting and payments

Data map, webhooks, synchronisation, queues, idempotency, error handling and key security: what has to work before an integration goes into production

Connecting two systems through an API is the smaller part of the job. The bigger part is handling what happens when a webhook arrives twice, the ERP does not respond and a token expires in the middle of the night. How to design an integration that survives all of that.

Read more
Tutorials
How to build an MVP: the first version of your product without burning through the budget – DualFroz - VulCode CEO
24 min read30 Sept 2026

How to build an MVP: the first version of your product without burning through the budget

Hypothesis, scope, priorities, the list of things put off, measuring after launch and deciding whether to extend the code or rewrite it

An MVP is not a cheaper version of the full product, it is the cheapest way to find out whether anyone needs it. How to set the scope, where to save, what not to simplify, how to measure the result and when to rewrite the code.

Read more
Technology
KSeF integration: the mandatory e-invoicing timeline and connecting your own system to API 2.0 – DualFroz - VulCode CEO
23 min read28 Sept 2026

KSeF integration: the mandatory e-invoicing timeline and connecting your own system to API 2.0

Who issues e-invoices in KSeF and from when, what changes in the company, and how to integrate an online store, admin panel or ERP: authentication, sending and receiving invoices, limits, offline modes and QR codes

KSeF, Poland's National e-Invoicing System, has been mandatory since 1 February 2026, and from 2027 it will cover the smallest businesses too. The timeline, what changes in the company and a practical guide to integrating your own system with the KSeF API 2.0: certificates, sessions, limits, receiving invoices and fallback modes.

Read more
Tutorials
GDPR compliant website: forms, consent, cookies and privacy policy – DualFroz - VulCode CEO
23 min read26 Sept 2026

GDPR compliant website: forms, consent, cookies and privacy policy

Legal bases for contact forms and newsletters, a cookie banner that complies with Poland's Electronic Communications Law, analytics, third-party scripts, data processing agreements and the typical mistakes on company websites and online stores

GDPR on a website is not a checkbox under a form. How to pick the legal basis for a contact form and a newsletter, when you need cookie consent, what to do about Google Analytics, what a privacy policy must contain and who you need a data processing agreement with.

Read more
Technology
Digital accessibility for websites and online stores: WCAG 2.2, the European Accessibility Act and Polish law – DualFroz - VulCode CEO
24 min read23 Sept 2026

Digital accessibility for websites and online stores: WCAG 2.2, the European Accessibility Act and Polish law

Who the Polish Accessibility Act covers from 28 June 2025, what WCAG 2.2 requires in practice, and how to test and fix a site before a customer or a regulator does it for you

Since 28 June 2025, online stores and websites through which a consumer can start entering into a contract must meet accessibility requirements. Who the law covers, what WCAG 2.2 requires and how to test your site without guesswork.

Read more
Technology
Business hosting: shared, VPS, dedicated server, cloud or PaaS – DualFroz - VulCode CEO
22 min read21 Sept 2026

Business hosting: shared, VPS, dedicated server, cloud or PaaS

Cost, performance, who administers the server and where the data lives across five hosting models, with a table of who is responsible for what

Choosing hosting is less about specs and more about deciding who will administer the server. We compare shared hosting, VPS, dedicated servers, cloud and PaaS on cost, performance, responsibility and where your data is stored.

Read more

From the first email to launch

The seven steps every project goes through. Hover a step to see what happens inside it.

First contact and a quote

You write to us or we set up a short call. Instead of asking about your budget, we break the project down: what it does, who for, and what happens if we do not build it. A quote and initial scope come back within an hour.

Onboarding in the client panel

You get an account in the client panel where you see progress, files, invoices and tickets as they happen. You send over materials, a brand book and access, and we turn that into a dated schedule both sides see from day one.

Prototyping the interface

Before any code runs, you see the layout and flow as wireframes of the key screens. We talk about where a button sits and in what order sections are read, not about colours. Changes here cost hours, not weeks.

Building the software

Work happens on a staging environment you can reach from day one, in a shared repository. Every week you get a short summary of what landed and what is in progress, so you never have to ask where things stand.

Testing and a fix buffer

Before launch the product runs through a checklist we built over years of not wanting to make the same mistake twice. After launch a free time buffer covers small fixes - we do not invoice for every typo.

Deployment and code handover

We set the launch date together so it surprises neither your users nor your team. After launch you get everything the project consists of: the repository, documentation and access. The code is yours - you do not have to come back to us to change anything.

Post-launch support

Launch does not end the collaboration. We monitor uptime and response times, and when something breaks we usually know before you do. Tickets stay in the same panel we ran the project in, so nobody starts the conversation from scratch.

Frequently Asked Questions

Click a question to see the answer.

What clients say

A few words from the people we built for.

Vulcode.com built our website and we're very happy with the result. The site runs smoothly, is well optimised and displays correctly on every device. The whole rollout went without a hitch, and the source code is clean and ready for further development. We appreciate the punctuality and the technical support at every stage.

+ Read more
Szymon
Szymon
CEO, WaveHost

Join our community!

See who we are and how we work. Behind VulCode is a tight-knit team that shares the behind-the-scenes of its projects, what we're learning and what we're building right now. On our Discord you'll find questions and answers, sneak peeks at what's coming and a direct line to the people who actually build these products. Drop by, ask, comment. Join the discussion today and grow with us!