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Lukas Wojcik
Web developer, digital analytics consultant & music producer
Hi, I'm Lukas. I've been online since 1998, and building things has stayed with me since my first website. These days I develop my own web projects and small tools that make technical tasks easier. When I take a break from code, I make music.
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About me
Ever since my first website, I've wanted to understand how things work behind the scenes. That curiosity led to online communities, web applications and eventually my career. I've worked in digital analytics consulting since 2013. Alongside that, I develop and run my own projects with Node.js, Python and PHP. I enjoy the whole process: thinking through an idea, getting it working and improving it as people use it. This site brings together my projects, technical notes and a few of my other interests.
Expertise
- Web development with Node.js, Python and PHP
- My own web applications, from idea to operation
- APIs, automation and backend architecture
- Cloud, IoT and smart home
- Digital analytics as my professional focus
- Agency experience since 2013 · online since 1998
Toolbox140+ tools
Check. Calculate. Get things done.
More than 140 tools for the web, data, networks and music production. Describe what you want to do – AI helps you find the right tool.
Go beyond reading. Try it yourself.
What changes when you adjust a setting? Three experiments make technical relationships visible.
Explore
Ready for an aha moment?
Find a bug, simulate a network outage or explore my early internet years. Small exercises connect my articles with useful tools.
Explore everything →Learn by trying
Eight projects. Many jobs around the web.
Choose a project to discover the task it tackles and why I am building it.
Stats4U
Stats4U helps understand how a website is used. I have been building it since 2006.
Visit project ↗MousePlayer
MousePlayer makes website visits easier to understand with session replay and heatmaps, showing where journeys work and where visitors get stuck.
Visit project ↗formexposed
formexposed checks contact forms from the outside for protection against spam bots and points out possible improvements.
Visit project ↗Answely
Answely adds short AI answers to site search, with sources from the website’s own public pages.
Visit project ↗reactive.chat
reactive.chat provides live chat with session context and can offer help when visitors get stuck on a website.
Visit project ↗getSend
getSend provides temporary email inboxes for receiving and sending messages, useful for tests or a single confirmation.
Visit project ↗Do4U · do4u.eu
Do4U brings AI tools together for everyday website work: check pages for issues, improve copy, draft SEO metadata and alt text, translate content and prepare product descriptions. CSV batches and an API help with recurring tasks. More than 30 tools are enabled in the protected preview; do4u.eu still shows the announcement page ahead of the public launch.
Visit project ↗This overview explains project roles. It does not imply an automatic integration between services.
A little more about me
Ideas that people can use
I like seeing a small idea become something people actually use. Stats4U has been with me since 2006. Today, I also work on getSend, MousePlayer, reactive.chat and formexposed – each with its own story.
Get to know my projectsThere is always room for music
Music has been part of my life since 2007, from producing and playing in Vienna clubs as Extesizer to LukyDeluxe in 2026. Older, unreleased pieces are getting a new home as Extesizer Tribute versions.
Listen to LukyDeluxeFrom Vienna to Łódź
I moved from Vienna to Łódź for personal reasons: to build a house. I took my work with me and continued working remotely. The curiosity that brought me online in 1998 stayed with me. Here, I share the projects, experiences and discoveries that came along the way.
More about my journey