April 2026

Great International Developer Summit (GIDS)

Bengaluru, India
Dates: Tue Apr 21, 2026 to Fri Apr 24, 2026 CFP: Fri Jul 18, 2025 to Tue Sep 30, 2025

BSides Groningen 2026

CFP OPEN
Groningen, The Netherlands
Dates: Thu Apr 23, 2026 to Thu Apr 23, 2026 CFP: Mon Jun 30, 2025 to Sat Jan 31, 2026

May 2026

Weblica 2026

CFP OPEN
Štrigova, Croatia
Dates: Thu May 7, 2026 to Thu May 7, 2026 CFP: Sat May 31, 2025 to Sat Jan 31, 2026

Java Day Istanbul 2026

Istanbul, Türkiye
Dates: Sat May 9, 2026 to Sat May 9, 2026 CFP: Fri Jul 18, 2025 to Mon Dec 15, 2025

SDD 2026

CFP OPEN
London, United Kingdom
Dates: Sun May 10, 2026 to Thu May 14, 2026 CFP: Mon Jul 7, 2025 to Fri Sep 19, 2025

Hike Expo COLORADO

CFP OPEN
Aurora, Colorado, United States
Dates: Fri May 15, 2026 to Sat May 16, 2026 CFP: Mon Mar 24, 2025 to Tue Dec 16, 2025

PHP Tek 2026

CFP OPEN
Chicago, Illinois, United States
Dates: Tue May 19, 2026 to Thu May 21, 2026 CFP: Thu Jun 26, 2025 to Sat Nov 1, 2025

DataGrillen 2026

CFP OPEN
Lingen, Germany
Dates: Wed May 20, 2026 to Thu May 21, 2026 CFP: Sat Jun 28, 2025 to Sun Dec 14, 2025

2nd Biennial International Dialogue Conference on Pan-Africanism

CFP OPEN
Abomey-Calavi, Benin
Dates: Sun May 24, 2026 to Tue May 26, 2026 CFP: Mon Jul 14, 2025 to Tue Aug 12, 2025

RubyConf Austria 2026

Vienna, Austria
Dates: Fri May 29, 2026 to Sat May 30, 2026 CFP: Fri Jul 18, 2025 to Mon Dec 1, 2025

June 2026

DDD Europe 2026

CFP OPEN
Antwerpen, Belgium
Dates: Sun Jun 7, 2026 to Thu Jun 11, 2026 CFP: Mon Jun 30, 2025 to Fri Jan 16, 2026

July 2026

Google Cloud Next Extended Da Nang 2025

CFP OPEN
Da Nang, Vietnam
Dates: Sat Jul 25, 2026 to Sat Jul 25, 2026 CFP: Mon Jul 7, 2025 to Sat Jul 19, 2025