VulCode

A Polish software house: websites, panels, applications and scalable platforms

_{Polski · English}

VulCode is a Polish software house with years of experience. Since 2020 we have delivered high-quality software and written more than 6 million lines of code across 150+ projects. We also contributed to 80 open source repositories with 1,220,000+ combined stars on GitHub. We specialize in websites, panels and dashboards, and applications, as well as building scalable platforms, and we actively contribute to dozens of open source projects.

🧩 What we do

🚀 Landing Page Fast One-Page sites optimized for conversion, lead generation and marketing campaigns. Ultra-fast loading speeds, responsive design and analytics integration.	🌐 Company Website Extensive company websites with an intuitive CMS. Custom design, blog, multi-language support, full technical SEO and independent content management.
📊 Panels & Dashboards Custom management systems, B2B and B2C portals: orders, customers, bookings, billing, automated reporting and granular team permissions in one place.	⚡ Web Platforms Web platforms, marketplaces and custom SaaS systems for EdTech, FinTech and more. Scalable architecture, role management and subscription payments.
🛒 Online Stores & E-commerce Modern online stores integrated with payment gateways and logistics. Streamlined checkout, catalog management and ready to sell from day one.	📱 Mobile Apps High-performance native apps for iOS and Android. Polished UX, offline support, push notifications and seamless API integration.
💻 Desktop Apps Reliable desktop software for Windows, macOS and Linux. Native performance, secure architecture and deep operating system integration.	🔗 Integrations & Automation Secure API integrations, webhooks, bots and custom scripts that eliminate repetitive manual work and bridge third-party tools.

💡 Ready-made platforms on a subscription. Not every project has to start with a big quote. A ready-made platform works right away, you run it from one panel, and hosting, updates and backups stay on our side. When your needs grow, you move smoothly to a dedicated project. See platforms

✅ Why VulCode

Guarantee	What this means for you
🏷️ Free quote	Quote and consultation at no charge: you know the cost before deciding anything. You get a clear, written cost breakdown you can review anytime.
🤝 No obligations	Requesting an offer commits you to nothing. You decide at your own pace, with no time pressure and no sales push.
🖥️ Staging access	Preview the project live on our server before it goes public. Follow progress as it happens and flag feedback early during development.
⚙️ Choice of tech	We adapt to your requirements or pick the best technology stack suited for your project's scale, budget, and future growth.
🔄 Revisions included	Revision rounds are included. We refine the project until you are satisfied: tweaking details and reacting to feedback with no extra invoices.
🚀 Launch support	We configure the domain, server, and SSL certificates. We ensure the launch runs smoothly with zero downtime.
🛟 Post-launch support	1 to 3 months of free care after launch. We handle minor adjustments, monitor uptime, and help out once live.
💬 Direct contact	One point of contact, clear answers, zero corporate fog. You message directly with the developer actually building your project.
🔒 NDA available	On request we sign a non-disclosure agreement before even hearing your project details. Your ideas remain your exclusive property.

🔄 How a project runs

A transparent, 7-step process from first call to production support:

1. First contact, workshop and 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 has to do, who for, and what happens if we do not build it. A quote and initial scope come back within 24 hours.

2. 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 can see from day one.

3. 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 at this stage cost hours, not weeks.

4. 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.

5. Testing and a free buffer for fixes Before launch the product goes through a checklist we built over years of not wanting to make the same mistake twice. After launch there is a free time buffer for small fixes: we do not invoice for every typo.

6. 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: it is not held hostage by our company, and you do not have to come back to us to change anything.

7. Post-launch support and monitoring 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.

📊 VulCode in numbers

6,396,043 lines of code		24,313 commits	150+ projects
1,220,000+ OSS project stars	80 open source projects	26 languages	1,679 working days

+ 7,573,499 lines added
- 1,318,429 lines removed
! 6,255,070 net lines

Languages

	Language	Lines of code	Commits	Share
	TypeScript	3,244,785	7,508	50.7% ███████████
	Rust	1,280,619	2,781	20.0% ████
	Go	343,647	965	5.4% â–ˆ
	Kotlin	207,212	552	3.2% â–ˆ
	C#	175,421	707	2.7% â–ˆ
	JavaScript	146,306	590	2.3% â–ˆ
	PHP	133,817	110	2.1% â–ˆ
	Swift	119,541	437	1.9% â–ˆ
	Python	111,145	362	1.7% â–ˆ
	Elixir	107,776	415	1.7% â–ˆ
	HTML	80,830	163	1.3% â–ˆ
	CSS	67,775	569	1.1% â–ˆ
	C++	60,532	84	0.9% â–ˆ
	Ruby	52,836	73	0.8% â–ˆ
	C	51,238	109	0.8% â–ˆ
	Lua	47,845	64	0.7% â–ˆ
	SQL	47,780	686	0.7% â–ˆ
	Zig	46,238	73	0.7% â–ˆ
	Shell	32,511	313	0.5% â–ˆ
	Java	14,401	50	0.2% â–ˆ
	Dart	6,146	28	0.1% â–ˆ
	Scala	5,439	25	0.1% â–ˆ
	Solidity	4,688	33	0.1% â–ˆ
	Haskell	3,641	25	0.1% â–ˆ
	F#	3,297	19	0.1% â–ˆ
	Assembly	577	8	0.0% â–ˆ

Frameworks & tools detected across projects _{(repository count)}

Docker ₆₂ · React ₃₁ · Express ₂₇ · Vite ₂₆ · Tailwind CSS ₂₄ · Motion ₁₈ · Prisma ₁₆ · discord.js ₁₄ · Serde ₁₀ · Tokio ₇ · reqwest ₇ · Gorilla WebSocket ₆ · SQLite ₆ · xUnit ₆ · Stripe ₅ · Avalonia ₄ · Axum ₄ · JUnit ₄ · PHPUnit ₄ · Playwright ₄ · SQLx ₄ · Vitest ₄ · Framer Motion ₃ · Jetpack Compose ₃ · Redis ₃ · Zod ₃ · clap ₃ · gRPC ₃ · wasm-bindgen ₃ · Android ₂ · BullMQ ₂ · Chart.js ₂ · Coroutines ₂ · FastAPI ₂ · Guzzle ₂ · HTTPX ₂ · Jest ₂ · Laravel ₂ · Next.js ₂ · Pterodactyl ₂ · aiohttp ₂ · discord.py ₂ · i18next ₂ · pytest ₂ · webpack ₂ · Click ₁ · Cobra ₁ · Discord.Net ₁ · Docker SDK ₁ · Ecto ₁ · Electron ₁ · Expo ₁ · GORM ₁ · Gin ₁ · Json.NET ₁ · Paper ₁ · PostgreSQL ₁ · Preact ₁ · Pydantic ₁ · Ratatui ₁ · React Native ₁ · SQLAlchemy ₁ · Spring Boot ₁ · Storybook ₁ · TanStack Query ₁ · Tauri ₁ · chi ₁ · discordgo ₁ · gopher-lua ₁ · pygame ₁ · tonic ₁

_{Counted by my own API ghapi.dualfroz.com across every repository, private ones included. Updated daily.}

🛠️ Technologies

Programming languages

TypeScript	Rust	JavaScript	Go	PHP	C#	Python
Kotlin	Elixir	Swift	C++	Java	C	Dart
Solidity	Ruby	Lua	Zig	Haskell	Scala	F#
Assembly

Backend & DevOps

Node.js	ASP.NET Core	Laravel	Symfony	Django	Flask	FastAPI
Docker	Kubernetes	nginx	Grafana	Linux	Git

Databases

PostgreSQL	MySQL	MariaDB	SQLite	Redis	MongoDB	ClickHouse
Cassandra	Prisma	JSON

Frontend & applications

React	Next.js	Vue	Angular	Astro	Vite	Tailwind CSS
Bootstrap	HTML	CSS	Sass	Electron	Tauri	Avalonia

Tools & software

VS Code	Visual Studio	JetBrains IDEs	Android Studio	Xcode	Unity	Godot
Unreal Engine	Figma	Photoshop	DaVinci Resolve	Blender

_{Detailed tech stack and standards: vulcode.com}

🌍 Open source

Beyond GitHub

Code merged outside GitHub, through mailing lists and the projects' own review tools: 12 commits in 5 repositories. Below them, changes approved by the maintainers that are awaiting merge.

Project	Repository	Status	Changes
Proxmox VE	pve-manager git.proxmox.com	merged, 6 commits	e42092e fix #6475: ui: upload: only show the file name of the selected file ac0c87d fix #4986: jobs: do not get stuck if the task log is missing 8efee57 fix #7108: ui: ipset: do not offer aliases that are already added +3 more
Proxmox VE	qemu-server git.proxmox.com	merged, 3 commits	167f3d70a5 fix #6907: memory: allow multi-digit host nodes with hugepages a4efa5f9ad partially fix #4012: migrate: mention snapshots referencing a local ISO image 5abda85 test: migration: support volumes other than images
Proxmox VE	pve-storage git.proxmox.com	merged, 1 commit	c10faa6972 fix #6969: plugin: keep content directory when freeing its last file
Proxmox VE	proxmox-widget-toolkit git.proxmox.com	merged, 1 commit	b92a9ad19f fix #6943: ui: network selector: show comments of IPv6 entries
Mozilla Firefox	mozilla-central hg.mozilla.org	merged, 1 commit	Bug 1996443 Bugzilla report D332854 Phabricator revision 9c1b9b8ff0a8 mozilla-central commit 16fd06a0033d GitHub mirror
Blender	blender/blender projects.blender.org	approved, awaiting merge	#165627 Fix #92527: Local View unhide #165628 Fix #96432: D key in text editing
OBS Studio	obsproject/obs-studio GitHub	approved, awaiting merge	#14080 libobs: numpad without NumLock on Wayland

On GitHub

Code that made it into projects we use every day. 158 merged pull requests in 80 repositories with 1,220,000+ stars combined.

Project	Stars	Language	Changes
nodejs/node	⭐ 123.1k	JavaScript	+43 -7
godotengine/godot	⭐ 119.2k	C++	+3 -0
mui/material-ui	⭐ 99.3k	JavaScript	+23 -28
zed-industries/zed	⭐ 92.3k	Rust	+123 -10
astral-sh/uv	⭐ 91.3k	Rust	+124 -7
alacritty/alacritty	⭐ 66.1k	Rust	+127 -30
mastodon/mastodon	⭐ 50.5k	Ruby	+34 -2
markedjs/marked	⭐ 37.3k	JavaScript	+37 -1
telegramdesktop/tdesktop	⭐ 33.4k	C++	+7 -5
composer/composer	⭐ 29.6k	PHP	+10 -4
icsharpcode/ILSpy	⭐ 26.8k	C#	+4724 -29
urfave/cli	⭐ 24.3k	Go	+52 -12
PHPMailer/PHPMailer	⭐ 22.3k	PHP	+135 -4
postcss/autoprefixer	⭐ 22.2k	JavaScript	+314 -63
twpayne/chezmoi	⭐ 22.1k	Go	+43 -17
gleam-lang/gleam	⭐ 22k	Rust	+134 -1
Seldaek/monolog	⭐ 21.4k	PHP	+41 -2
valeriansaliou/sonic	⭐ 21.4k	Rust	+217 -36
lichess-org/lila	⭐ 18.9k	Scala	+35 -7
OpenRA/OpenRA	⭐ 17.7k	C#	+43 -5
briannesbitt/Carbon	⭐ 16.6k	PHP	+87 -0
PuerkitoBio/goquery	⭐ 15k	Go	+183 -18
App-vNext/Polly	⭐ 14.3k	C#	+19 -1
hajimehoshi/ebiten	⭐ 13.6k	Go	+381 -297
filp/whoops	⭐ 13.2k	PHP	+115 -3
spencermountain/compromise	⭐ 12.2k	JavaScript	+498 -89
doctrine/lexer	⭐ 11.1k	PHP	+72 -2
kanboard/kanboard	⭐ 9.9k	PHP	+293 -11
FluentValidation/FluentValidation	⭐ 9.8k	C#	+14 -1
serilog/serilog	⭐ 8.1k	C#	+12 -0
concourse/concourse	⭐ 7.9k	Go	+153 -23
predis/predis	⭐ 7.8k	PHP	+352 -27
vscode-neovim/vscode-neovim	⭐ 7.8k	TypeScript	+65 -2
NLog/NLog	⭐ 6.5k	C#	+94 -4
maildev/maildev	⭐ 6.2k	TypeScript	+69 -13
Pagefind/pagefind	⭐ 5.5k	Rust	+48 -2
xoofx/markdig	⭐ 5.3k	C#	+357 -48
dromara/carbon	⭐ 5.2k	Go	+41 -4
alecthomas/chroma	⭐ 5.1k	Go	+90 -3
olekukonko/tablewriter	⭐ 4.8k	Go	+16 -0
knadh/koanf	⭐ 4.2k	Go	+28 -7
spencermountain/spacetime	⭐ 4.1k	JavaScript	+67 -62
itchyny/gojq	⭐ 3.8k	Go	+42 -5
Suor/funcy	⭐ 3.5k	Python	+18 -2
thephpleague/csv	⭐ 3.5k	PHP	+22 -9
composer/satis	⭐ 3.3k	PHP	+105 -12
NaturalIntelligence/fast-xml-parser	⭐ 3.1k	JavaScript	+2 -0
versity/versitygw	⭐ 3.1k	Go	+1004 -85
montanaflynn/stats	⭐ 3k	Go	+66 -23
mitsuhiko/insta	⭐ 3k	Rust	+8 -2
thephpleague/commonmark	⭐ 3k	PHP	+17 -0
BurntSushi/jiff	⭐ 3k	Rust	+37 -5
zzzprojects/html-agility-pack	⭐ 2.9k	C#	+27 -1
Paymenter/Paymenter	⭐ 2.8k	PHP	+137 -11
api-platform/core	⭐ 2.6k	PHP	+52 -27
pelican/panel	⭐ 2.4k	PHP	+338 -32
gookit/goutil	⭐ 2.4k	Go	+12 -0
dedoc/scramble	⭐ 2.2k	PHP	+23 -0
gocarina/gocsv	⭐ 2.2k	Go	+185 -22
thephpleague/html-to-markdown	⭐ 1.9k	PHP	+20 -9
spatie/period	⭐ 1.7k	PHP	+69 -0
AfterShip/email-verifier	⭐ 1.6k	Go	+99 -3
fabiocaccamo/python-benedict	⭐ 1.6k	Python	+66 -5
gookit/color	⭐ 1.6k	Go	+12 -1
olebedev/when	⭐ 1.5k	Go	+45 -1
dgilland/pydash	⭐ 1.4k	Python	+18 -5
cakephp/chronos	⭐ 1.4k	PHP	+17 -2
go-playground/form	⭐ 932	Go	+35 -0
mkideal/cli	⭐ 723	Go	+22 -1
gookit/config	⭐ 585	Go	+29 -8
rust-syndication/rss	⭐ 503	Rust	+24 -2
kelindar/bitmap	⭐ 385	Assembly	+146 -12
brick/date-time	⭐ 360	PHP	+67 -36
pydantic/pydantic-extra-types	⭐ 339	Python	+124 -1
rodaine/table	⭐ 324	Go	+32 -2
wroberts/pytimeparse	⭐ 296	Python	+5 -1
QEDK/configparser-rs	⭐ 88	Rust	+22 -1
thephpleague/uri-src	⭐ 51	PHP	+18 -2
spiral/testing	⭐ 7	PHP	+255 -6

❓ Frequently asked questions

What does the project delivery process look like?

We start with a free consultation (30-60 minutes) to discuss scope, goals and budget. We then prepare a quote and timeline. After acceptance we start the project divided into milestones with regular progress updates. You have full visibility into current status throughout.

What are the payment terms?

We typically charge 40% upfront before starting and 60% upon project completion and handoff. For larger projects we can set up milestone-based payments. We issue VAT invoices and accept bank transfer.

Will I receive the full source code after the project?

Yes, the source code is entirely yours. We hand it over via a private Git repository (GitHub/GitLab) or as an archive. We do not apply any lock-ins, licensing restrictions, or proprietary ties to our infrastructure.

Do you offer support after the project is finished?

Yes. We provide standard post-launch support (1 to 3 months) and warranty for bugs resulting from our implementation. For long-term collaboration we offer ongoing maintenance plans (hosting, updates, monitoring, minor changes) tailored to your needs.

How does communication work during the project?

We communicate through a dedicated project Discord or Slack channel: you have direct daily access to the developer. We send a concise weekly progress report. When something requires a quick decision, we schedule a brief video call.

Can I order a project with my own design (Figma)?

Absolutely. If you have a ready UI design in Figma, we can implement it directly, which shortens delivery time and reduces cost. We can also adopt your existing design system and build consistently within it.

How long does a project take?

It depends on scope. A landing page usually takes 1-2 weeks, a larger CMS-driven site 3-6 weeks, and a platform or app is typically 2-4 months. We set an exact milestone-based timeline during the quote and stick strictly to it.

Do you sign a contract and NDA?

Yes. Every project runs on a contract that clearly defines scope, deadlines, costs and code ownership. On request we also sign an NDA before discussing details: your idea and data remain completely confidential and safe.

I don't have a spec ready: can you help create one?

Of course, most clients start with an idea rather than a finished specification. During the consultation we ask the right questions, advise on feature scope and priorities, then write a clear requirements document that serves as the basis for the quote. You don't need technical background.

Do you help with hosting, domain and deployment?

Yes, we handle the entire deployment: server configuration, domain DNS, SSL certificates and going live in production. We can host the project on our infrastructure or deploy it directly to your cloud provider (e.g. AWS, GCP, Cloudflare, VPS) with full administrative handoff.

Have a project? Get in touch · Branding and design is handled by our sister brand Aphrodi