Open Source Conferences 2026–2027

3-4 Jun 2026

PG Day France 2026

France, Toulouse

4 Jun 2026

SymfonyDay Montreal 2026

Canada, Montreal

6 Jun 2026

Matsue RubyKaigi 12

Japan, Matsue

6-8 Jun 2026

ZuriHac 2026

Switzerland, Rapperswil-Jona

7-9 Jun 2026

Berlin Buzzwords

Germany, Berlin

8-11 Jun 2026

Web Summit Rio 2026

Brazil, Rio de Janeiro

9-10 Jun 2026

Nordic-RSE in person conference 2026 (#NordicRSEconf)

Norway, Tromsø

12-13 Jun 2026

Baltic Ruby 2026

Germany, Hamburg

12-13 Jun 2026

JSCraftCamp 2026

Germany, Munich

15-17 Jun 2026

Umbraco US Festival

United States, Chicago

15-16 Jun 2026

OpenSearchCon India

India, Mumbai

16-17 Jun 2026

Open Source Summit India

India, Mumbai

18-19 Jun 2026

DevConf.CZ 2026

Czechia, Brno

25 Jun 2026

Open Source in Finance Forum London

United Kingdom, London

25 Jun 2026

Brighton Ruby Conference 2026

United Kingdom, Brighton

13-19 Jul 2026

SciPy 2026

🌐 Online / Minneapolis

19 Jul 2026

Open Source Days

🌐 Online / Los Angeles

9-12 Aug 2026

DEF CON 34 FOR 2026

United States, Las Vegas

12-14 Aug 2026

USENIX Security '26 (35th USENIX Security Symposium)

United States, Baltimore

14-15 Aug 2026

Beer City Code

United States, Grand Rapids

14-15 Aug 2026

Carolina Code Conference™

United States, Greenville

21-22 Aug 2026

Ruby Conf Africa 2026

Kenya, Nairobi

26-30 Aug 2026

PyCon AU 2026

Australia, Brisbane

27-28 Aug 2026

DrupalCamp Colorado 2026

United States, Denver

31 Aug - 1 Sep 2026

GopherCon South Africa 2026 (GopherCon SA)

South Africa, Johannesburg

31 Aug - 2 Sep 2026

Airflow Summit

United States, Austin

1 Sep - 1 Dec 2026

Open Source Summit Korea

South Korea, Seoul

1-3 Sep 2026

seL4 Summit

Canada, Vancouver

7-11 Sep 2026

Rails Camp West 2026

United States, Otis

8 Sep 2026

PGDay UK

United Kingdom, London

10-12 Sep 2026

LibreOffice Conference 2026

Italy, Pordenone

12 Sep 2026

Zigtoberfest 2026

Germany, München

13-15 Sep 2026

Infobip Shift 2026

Croatia, Zadar

14-16 Sep 2026

Oxidize Conference

Germany, Berlin

15-16 Sep 2026

LF Energy Summit Europe

Germany, Berlin

22-24 Sep 2026

ROSCon 2026

Canada, Toronto

22-26 Sep 2026

Nerdearla (Buenos Aires) 2026

🌐 Online / Buenos Aires

23-24 Sep 2026

Rails World 2026

United States, Austin

24-25 Sep 2026

DevConf.US 2026

United States, Boston

26 Sep 2026

Security BSides Kraków 2026

Poland, Kraków

28 Sep - 1 Oct 2026

DrupalCon Rotterdam 2026

Netherlands, Rotterdam

30 Sep - 1 Oct 2026

Automotive Grade Linux All Member Meeting Europe

Germany, Berlin

1 Oct 2026

Open Tech Day 2026

Germany, Nuremberg

1 Oct 2026

tiny ruby #{conf} 2026

Finland, Helsinki

5-7 Oct 2026

Linux Plumbers Conference 2026

🌐 Online / Prague

7-9 Oct 2026

FlutterCon 2026

Germany, Berlin

7-9 Oct 2026

Embedded Linux Conference Europe

Czechia, Prague

7-9 Oct 2026

Open Source Summit Europe

Czechia, Prague