Open Source conferences in Europe 2026 / 2027

Conferences ✕ Europe ✕ Open Source ✕
Asia 18
Africa 0
Europe 36
North America 22
South America 1
Oceania 0
Online 5
.NET 10
Agile 20
Android 10
Angular 23
API 16
Apple 8
AR / VR / XR 3
Artificial Intelligence (AI) 161
AWS 9
Azure 11
Big Data 114
BSD / OS 8
Business Analysis 10
C/C++ 2
CIO 8
Clojure 2
Cloud 106
Crypto / Blockchain 17
CTO 12
Cybersecurity / InfoSec 62
Data / Database 122
Data Science 115
DDD 6
DevOps 87
Django 8
Docker / Kubernetes 68
Drupal 1
Elixir 3
Fintech 16
Flutter 16
Full-stack 49
Functional programming 5
Game dev 5
Golang 4
Google 12
Hardware / IoT 8
Haskell 1
HR / Hiring / Recruiting 5
iOS / Swift 14
IT 640
IT service management 2
Java 17
JavaScript 38
Kotlin 15
Laravel 4
Large Language Model (LLM) 84
Linux / OS 10
Machine Learning (ML) 120
Microsoft 53
Mobile 16
MongoDB 1
Open Source 36
Operating Systems / OS 8
PHP 12
Postgres 4
Product management 34
Project management / PMO 29
Python 10
React 23
Ruby 2
Ruby on Rails 2
Rust 3
Salesforce 3
SAP 3
Scala 16
Scrum 15
Serverless 2
Software architecture 72
SQL 35
SRE 70
Startup 5
Symfony 4
Tech 640
Tech leadership 28
Telecom / 5G 3
Testing / QA 14
TypeScript 38
UI / UX 19
Vue 15
Web / Frontend 40
Web3 15
WordPress 6
AT Austria 2
CZ Czech Republic 5
DK Denmark 1
FR France 2
DE Germany 12
IT Italy 1
XK Kosovo 1
LU Luxembourg 1
NL Netherlands 3
PL Poland 1
RO Romania 1
ES Spain 1
SE Sweden 1
GB United Kingdom 4

Best Open Source conferences in Europe 2026 / 2027

Best conference
The Principal Dev – Masterclass for Tech Leads

The Principal Dev – Masterclass for Tech Leads

Certification masterclass for experienced software engineers.

Best conference
Clean Architecture Masterclass

Clean Architecture Masterclass

Certification masterclass for experienced Java developers.

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Codegarden 2026

Open Source conference in Copenhagen, Denmark, Europe and Online

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Cloud Native & Open Source AI Conference

Open Source conference in London, United Kingdom, Europe

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React Summit 2026

Open Source conference in Amsterdam, Netherlands, Europe

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Jupyter Workshops: Demystifying MyST Markdown in Education

Open Source masterclass in Orsay, France, Europe

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DevConf.CZ

Open Source conference in Brno, Czech Republic, Europe

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Open Source in Finance Forum London

Open Source conference in London, United Kingdom, Europe

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OWASP Global AppSec EU 2026

Open Source conference in Vienna, Austria, Europe

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Automotive Oopen Source Summit 2026

Open Source conference in Starnberg, Germany, Europe

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techcamp 2026

Open Source conference in Hamburg, Germany, Europe

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State of the Map

Open Source conference in Paris, France, Europe

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Percona Live Amsterdam

Open Source conference in Amsterdam, Netherlands, Europe

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Zigtoberfest 2026

Open Source conference in Munich, Germany, Europe

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Xen Summit 2026

Open Source conference in Munich, Germany, Europe

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SFK 2026

Open Source conference in Pristina, Kosovo, Europe

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Open Tech Day 26: Software-defined Storage

Open Source conference in Nuremberg, Germany, Europe

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eLSA symposium

Open Source conference in Gottingen, Germany, Europe

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Observability Summit Europe 2026

Open Source conference in Prague, Czech Republic, Europe

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OpenSSF Community Day Europe

Open Source conference in Prague, Czech Republic, Europe

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Open Source Summit Europe 2026

Open Source conference in Prague, Czech Republic, Europe

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Open Source Summit Europe

Open Source conference in Prague, Czech Republic, Europe

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Open Source Conference Luxembourg 2026

Open Source conference in Belval, Luxembourg, Europe

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Lakehouse Day EU 2026

Open Source conference in Glasgow, United Kingdom, Europe

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BazelCon

Open Source conference in Amsterdam, Netherlands, Europe

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Joomla! World Conference

Open Source conference in Potsdam, Germany, Europe

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Umbraco UK Conference 2026

Open Source conference in London, United Kingdom, Europe

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OmniOpenCon 2026

Open Source conference in Bucharest, Romania, Europe

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Umbracokalaset 2026

Open Source conference in Stockholm, Sweden, Europe

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Akademy 2026

Open Source conference in Graz, Austria, Europe

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JS Poland

Open Source conference in Warsaw, Poland, Europe

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Open Source Monitoring Conference (OSMC)

Open Source conference in Nuremberg, Germany, Europe

15% discount with code DEV.EVENTS15