Last verified: October 30, 2026 · how we verify
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React Day Berlin is a conference for React developers organised by GitNation, and its seventh edition is billed as the "AI for React developers" edition. The programme addresses engineers, tech leads and staff engineers looking to level up, with deep dives into full-stack architecture, AI-assisted coding, AI engineering, reliability, long-term maintainability and the path toward senior and technical leadership roles. The 2026 edition is hybrid. The in-person day on 4 December takes place at Kosmos, a 1960s Space Age theatre on Karl-Marx-Allee in Berlin's Friedrichshain district, and is streamed for remote attendees. A remote day on 7 December streams both tracks with online speaker Q&A. Organisers cite around 800 in-person attendees, roughly 5,000 joining remotely and more than 40 speakers and trainers, along with over ten free and paid workshops held around the main days. Attendees gain practical perspective on integrating AI into React applications and on designing front-end systems that stay maintainable at scale. As a React conference in Berlin with a large online audience, the event connects the European JavaScript community and reflects how AI is reshaping everyday front-end engineering work.
React Day Berlin 2026 takes place December 4–7, 2026 in Berlin, Germany.
React Day Berlin 2026 is a hybrid event — you can attend on-site or join remotely.
Travel questions? See Good to know in the travel guide below.
Early December turns Berlin into a city of illuminated squares and mulled wine stalls, and a front-end conference over these dates lands squarely in the middle of it. Friedrichshain, with its converted power stations and warehouse venues, is where much of the city's JavaScript community actually works and drinks. Cold, dark and lively is the accurate summary.
From Berlin Brandenburg Airport (BER), the FEX express reaches Hauptbahnhof in roughly 30 minutes, with S-Bahn alternatives running more often. Friedrichshain is served directly by the S-Bahn ring and several U-Bahn lines, plus an extensive tram network in the east of the city. Trams matter more here than in the west and run late. Cycling is popular but genuinely cold at this time of year.
Skip the taxi queue — pre-book a fixed-price airport transfer with Welcome Pickups. Exploring beyond the city? compare rental cars on Auto Europe.
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Venue wifi at a large developer event is rarely dependable when several hundred laptops contend for it. An eSIM provides a personal fallback. Set up an eSIM with Airalo before you board and you're online the moment you land.
Gendarmenmarkt Christmas Market. The most architecturally striking of Berlin's winter markets, set between two matching cathedrals and a concert hall. There is a small entrance fee, which keeps the crowds tolerable. Go after dark for the lighting, allow an hour, and eat before rather than after the queues build.
Computerspielemuseum. A compact museum tracing video game history from early mainframe experiments to modern consoles, with a large bank of playable machines. Strong on the East German computing story that most collections omit. Ninety minutes is plenty, and it is a short walk from Friedrichshain venues.
Karl-Marx-Allee. A monumental socialist boulevard of tiled apartment blocks stretching two kilometres east, built as a showpiece of the GDR. Walking it end to end takes about an hour and gives a far better sense of divided Berlin than any single monument. Best in flat winter light.
Berlin TV Tower. The Fernsehturm gives the clearest overhead read of the city's layout, which is otherwise hard to grasp at street level. Clear winter days offer exceptional visibility. Book a timed entry slot to skip the queue, and allow an hour including the ascent. Tickets on Go City →
Which airport serves Berlin?
Berlin Brandenburg (BER) is the single airport serving the city, connected to the centre by express and regional trains in about half an hour.
Is public transport running late at night?
Yes. Trams and night buses run through the night, and the U-Bahn operates continuously on Friday and Saturday nights.
How cold is early December?
Expect temperatures around or just above freezing, with occasional snow and reliably early sunsets. Layers and waterproof shoes are worth packing.
Travel notes written for React Day Berlin attendees. Links marked above are affiliate links — we may earn a commission at no cost to you. Verify schedules and opening hours on official websites before you travel.
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