data.Brno is the City of Brno’s official data portal: open data, maps, applications and analysis for 400,000 residents at one address. I built its designed interface as HTML and CSS components for ArcGIS Hub.
The Brno in Numbers 2025 exhibition on a Brno square.
The project in numbers
residents of the city the portal serves
404,296
datasets, maps, applications and articles in the catalogue
634
portal views per month
≈ 11,700
billboards and transit stop posters carrying data.brno.cz
Citywide
Population and catalogue size from data.brno.cz as of 21 October 2026. Views from the portal’s statistics.
Campaign across the city
From Brno’s streets to data.Brno.
The city promoted the portal with billboards around Brno and posters at almost every transit stop. The Brno in Numbers 2025 exhibition brought city data into public space. Every panel carried the data.brno.cz address and a QR code, so the route from the street led straight into the interface I built.
Brno in Numbers 2025 billboard Six figures about the city, the data.Brno logo and a QR code. This is what the billboards around Brno looked like.An exhibition between buildings The panels formed whole lanes on the square. Each one carried the data.Brno logo. Photo: KAM BrnoAn exhibition panel up close Photo: brnomycity
A visitor’s route
Transit stop poster Posters hung at almost every stop in the city.
Address and QR code Every poster carried the same QR code and address.
Brno in Numbers 2025 on data.Brno The QR code opens the exhibition on the portal: panels, a quiz and an audio guide.Campaign destinationdata.brno.cz
A row of exhibition panels Every exhibition panel pointed to data.brno.cz.
Brief and interface
The design had to work inside ArcGIS Hub.
The platform limits visual customisation. I translated the prepared layout into HTML and CSS components: the header, introduction, topic cards, city figures and footer. Together, these parts form the portal’s pages.
Inside the interface
HTML + CSS / ArcGIS Hub
From design to a working interface.
Explore the portal introduction, topic navigation, city figures and footer. Assemble the parts into one page or separate them to inspect each one.
Tell me who the site is for and where it needs to run. I can design and build it. If you already have a design, as in this project, I can work from it.
