kodu.je

What kodu.je does

Koduje (koduje.pl, formerly kodu.je) is a Polish-language web development education platform founded by Wojciech Połowniak around 2017 and operated as a solo founder venture from Poland. The platform delivers free video tutorials on HTML, CSS, JavaScript, Vue.js, Nuxt.js, Docker, and accessibility primarily through the Koduje YouTube channel, with a supplementary koduje.pl website that hosts over 1,042 minutes of free content, a curated library of free developer tools, source code for examples, interactive quizzes, and embedded CanIUse browser support data. Paid courses covering CSS Grid, Flexbox, Houdini, Docker, Nuxt.js, and accessibility are sold exclusively through the third-party eduweb.pl marketplace, with at least six courses totaling over 31 hours of premium content. The business operates with 1-10 employees (effectively a single full-time operator), has no external institutional funding, and monetizes via YouTube ad revenue plus revenue share from eduweb.pl course sales. Distribution spans YouTube (primary), the koduje.pl website, and active social channels on Facebook, LinkedIn, TikTok, and Instagram. The target audience is Polish-speaking aspiring and practicing web developers, and the founder also participates in the meet.js developer community and previously served as a Mozilla TechSpeaker, lending credibility through community engagement rather than enterprise partnerships.

Name

kodu.je

Legal name

Koduje

Website

https://koduje.pl

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

Koduje is a Polish-language web development education platform offering free HTML, CSS, and JavaScript video tutorials on YouTube alongside paid courses on eduweb.pl, serving aspiring and practicing Polish-speaking developers through a solo-founder content-led model.

Ownership category

akta.pro rank

Product category

Online Developer Education

NAICS

Computer Training (61142), Business Schools and Computer and Management Training (6114), Educational Services (611)

SIC

Services-Educational Services (8200), Miscellaneous Publishing (2741)

akta.pro primary industry

Online Learning Content & Course Publishing Platforms (BPAMAJAL)

Keywords

• Web development tutorials
• Front-end training
• CSS education
• JavaScript learning
• Developer upskilling

GTM type

B2C

Offering type

Digital Commerce or Content

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. YouTube ad revenue (implied): Free educational content on YouTube generates ad revenue through YouTube's partner program.
2. Paid courses on eduweb.pl: Dedicated premium courses authored by Wojciech Połowniak are sold through the eduweb.pl platform. Courses cover CSS Grid, Flexbox, Houdini, Docker, Nuxt.js, and accessibility. Wojciech has created at least 6 dedicated courses on the platform totaling over 31 hours of content.
3. Newsletter (future paid content): Newsletter signup is used to notify subscribers about future paid materials. 'W przyszłości, możemy udostępnić Ci informacje o dodatkowych kursach naszego autorstwa.'

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Koduje (koduje.pl) is a Polish-language web development education platform operated by Wojciech Połowniak. It provides free video tutorials on HTML, CSS, JavaScript, Vue.js, Docker, and web accessibility primarily via YouTube, complemented by a curated collection of free third-party developer tools on koduje.pl. The creator also offers six paid dedicated courses covering CSS Grid, Flexbox, Accessibility, Docker, and Nuxt.js distributed through the eduweb.pl e-learning platform.

Product overview

Koduje (koduje.pl) is a free web development education platform operated by Wojciech Połowniak, offering free video tutorials on YouTube alongside paid professional courses on eduweb.pl. The free tier includes dozens of HTML/CSS/JavaScript tutorials and a curated library of free developer tools. The paid tier consists of six dedicated courses on eduweb.pl covering CSS Grid, Flexbox, Accessibility, Docker, and Nuxt.js. The platform is community-oriented and has been active for over 10 years.

Differentiator

Problem solved

Functional benefit

Products and services

• Free Web Development Tutorials on YouTube Free Polish-language video tutorials covering HTML, CSS, JavaScript, Vue.js, Docker, web accessibility, responsive design, and progressive enhancement. Targeted at aspiring and practicing web developers seeking quality native-language technical education.
• Curated Free Developer Tools Collection A curated library of free third-party developer tools including WhoCanUse contrast testers, Clippy clip-path generator, CSS specificity calculators, Regexr, Diffr, Lea Verou timing function generator, keyframes.app animation generator, and CanIUse browser support validator. Targeted at web developers needing quick access to commonly-used utilities.
• Flexbox Positioning Course A 4 hour 7 minute paid course on CSS Flexbox positioning techniques, sold through the eduweb.pl platform. Targeted at web developers learning modern CSS layout techniques.
• CSS Grid Responsive Web Design Course A 3 hour 3 minute paid course on advanced responsive layout using CSS Grid without media queries, distributed through eduweb.pl.
• Web Accessibility (A11y) Course A 3 hour 32 minute paid course covering web accessibility principles and practical implementation, sold through eduweb.pl.
• Complete CSS Course - Grid, Flexbox, Houdini A 9 hour 11 minute comprehensive paid course covering CSS Grid, Flexbox, and modern CSS ecosystem features including styling for notch and Houdini, distributed via eduweb.pl.
• Docker for Web Developers Course A 4 hour 33 minute paid course covering Docker containerization for web developers, including application distribution across collaborators and hosting environments, sold through eduweb.pl.
• Nuxt.js SSR Framework Course A 7 hour 2 minute paid course covering the Vue.js Nuxt.js framework with Server Side Rendering, dynamic page loading, localization, and progressive enhancement through a Wikipedia clone project, sold through eduweb.pl.

Quantifiable outcome

• Over 60,000 views on individual CSS tutorials
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered core and minor.

• eduweb.plcoreChannel Partner/ Reseller/ DistributorWojciech Połowniak creates dedicated paid courses that are sold exclusively through the eduweb.pl platform. At least 6 courses are available covering CSS Grid, Flexbox, Houdini, Docker, Nuxt.js, and accessibility. The eduweb platform acts as the distributor and payment processor for these paid courses.
• Mozilla (former TechSpeaker program)minorGTM or Marketing PartnerWojciech Połowniak served as a Mozilla TechSpeaker, giving talks at industry events under the Mozilla banner. This association lends credibility to the Koduje brand and its web development education content.
• meet.js communityminorStrategic or Co-development PartnerWojciech Połowniak is an organizer of meet.js, a community of JavaScript developers in Poland. meet.js Summit 2022 celebrated 10 years of the meet.js brand and raised over 73,000 PLN for charity. The communities share audience overlap.

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Udemy: Global marketplace where individual creators sell video courses on web development. Comparable business model (creator-led, paid video courses) but vastly broader catalogue and audience.

Emerging players

• freeCodeCamp: Global free developer education platform with extensive YouTube tutorials and a project-based curriculum. Competes for the same self-directed learners but in English, making it a conceptual alternative rather than a direct head-to-head in Polish.

Direct peers

• eduweb.pl: Polish e-learning platform that hosts and distributes Koduje's paid courses. Operates in the same Polish-language developer education market with a broader curriculum across web, design, and 3D, making it the closest direct competitor and channel partner.
• Overment: Polish web development YouTube creator offering free tutorials and paid courses on JavaScript, CSS, and modern front-end tooling. Direct creator-led competitor in the same niche and language.
• Strefakursów.pl: Polish online course marketplace selling video courses on programming, web development, and IT. Targets the same Polish-speaking learners and competes for the same paid course wallet share.
• Wes Bos: Independent English-language web development educator with free YouTube tutorials and premium paid courses on JavaScript, React, and CSS. Closest analogue to Koduje's creator-led freemium model at global scale.
• Frontend Masters: English-language paid platform with deep, expert-led front-end and full-stack courses. Comparable product positioning to Koduje's eduweb courses but at a higher price point and broader topic depth.
• Traversy Media: English-language web development YouTube creator offering free crash courses and tutorials on HTML, CSS, JavaScript, and modern frameworks. Strongly analogous creator-led model targeting aspiring developers.
• Pasja Informatyki: Long-running Polish-language IT education portal and YouTube channel covering programming, web development, and computer science fundamentals. Historical incumbent competing for the same self-taught Polish developer audience.

Others

• MDN Web Docs: Mozilla-maintained reference documentation and learning resources for web technologies. An institutional alternative to Koduje's tutorial content, to which Koduje previously had a speaker affiliation with Mozilla.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/kodu_je
• YouTubeyoutube.com/koduje
• Facebookfacebook.com/kodujemy
• LinkedInlinkedin.com/company/koduje
• Instagraminstagram.com/koduje.pl
• TikToktiktok.com/@koduje

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about kodu.je