Open Source conferences in Europe 2026 / 2027

Conferences ✕ Europe ✕ Open Source ✕
Asia 15
Africa 0
Europe 41
North America 24
South America 1
Oceania 0
Online 5
.NET 11
Agile 22
Android 12
Angular 17
API 14
Apple 9
AR / VR / XR 5
Artificial Intelligence (AI) 154
AWS 16
Azure 11
Big Data 109
BSD / OS 10
Business Analysis 8
C/C++ 2
CIO 8
Clojure 3
Cloud 109
Crypto / Blockchain 15
CTO 14
Cybersecurity / InfoSec 59
Data / Database 118
Data Science 110
DDD 4
DevOps 86
Django 8
Docker / Kubernetes 68
Drupal 1
Elixir 4
Fintech 15
Flutter 18
Full-stack 44
Functional programming 7
Game dev 7
Golang 4
Google 19
Hardware / IoT 10
Haskell 2
HR / Hiring / Recruiting 7
iOS / Swift 17
IT 640
IT service management 1
Java 18
JavaScript 28
Kotlin 16
Laravel 7
Large Language Model (LLM) 86
Linux / OS 13
Machine Learning (ML) 114
Microsoft 52
Mobile 17
MongoDB 1
Open Source 41
Operating Systems / OS 10
PHP 21
Postgres 4
Product management 32
Project management / PMO 28
Python 10
React 18
Ruby 2
Ruby on Rails 2
Rust 3
Salesforce 2
SAP 6
Scala 18
Scrum 18
Serverless 4
Software architecture 64
SQL 28
SRE 70
Startup 5
Symfony 7
Tech 640
Tech leadership 29
Telecom / 5G 4
Testing / QA 14
TypeScript 29
UI / UX 16
Vue 10
Web / Frontend 31
Web3 12
WordPress 12
AT Austria 1
BG Bulgaria 1
CZ Czech Republic 6
FR France 1
DE Germany 13
IT Italy 1
XK Kosovo 1
LV Latvia 1
LU Luxembourg 1
NL Netherlands 4
NO Norway 1
PL Poland 1
RO Romania 1
ES Spain 1
SE Sweden 1
GB United Kingdom 6

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.

oss

techcamp 2026

Open Source conference in Hamburg, Germany, Europe

oss

State of the Map

Open Source conference in Paris, France, Europe

oss

Percona Live Amsterdam

Open Source conference in Amsterdam, Netherlands, Europe

oss

Zigtoberfest 2026

Open Source conference in Munich, Germany, Europe

oss

Xen Summit 2026

Open Source conference in Munich, Germany, Europe

oss

Cloud Native Amsterdam

Open Source conference in Amsterdam, Netherlands, Europe

oss

Dutch Umbraco Alliance

Open Source conference in Apeldoorn, Netherlands, Europe

oss

SFK 2026

Open Source conference in Pristina, Kosovo, Europe

oss

Open Tech Day 26: Software-defined Storage

Open Source conference in Nuremberg, Germany, Europe

oss

eLSA symposium

Open Source conference in Gottingen, Germany, Europe

oss

Observability Summit Europe 2026

Open Source conference in Prague, Czech Republic, Europe

oss

ValkeyConf

Open Source conference in Prague, Czech Republic, Europe

oss

OpenSSF Community Day Europe

Open Source conference in Prague, Czech Republic, Europe

oss

Valkey Contributor Summit

Open Source conference in Prague, Czech Republic, Europe

oss

Open Source Summit Europe 2026

Open Source conference in Prague, Czech Republic, Europe

oss

Open Source Summit Europe

Open Source conference in Prague, Czech Republic, Europe

oss

Open Source Conference Luxembourg 2026

Open Source conference in Belval, Luxembourg, Europe

oss

Lakehouse Day EU 2026

Open Source conference in Glasgow, United Kingdom, Europe

oss

Dyalog '26

Open Source conference in Eastbourne, United Kingdom, Europe

oss

BazelCon

Open Source conference in Amsterdam, Netherlands, Europe

oss

Umbraco Partner Summit 2026

Open Source conference in London, United Kingdom, Europe

oss

Joomla! World Conference

Open Source conference in Potsdam, Germany, Europe

oss

Umbraco UK Conference 2026

Open Source conference in London, United Kingdom, Europe

oss

OmniOpenCon 2026

Open Source conference in Bucharest, Romania, Europe

oss

Umbracokalaset 2026

Open Source conference in Stockholm, Sweden, Europe

oss

Bergen Open Source 2026

Open Source conference in Bergen, Norway, Europe

oss

ALASCA Summit 2026

Open Source conference in Dresden, Germany, Europe

oss

OpenFest 2026

Open Source conference in Sofia, Bulgaria, Europe

oss

Akademy 2026

Open Source conference in Graz, Austria, Europe

oss

JS Poland

Open Source conference in Warsaw, Poland, Europe