- 14: GitLab Commit - USA (San Francisco)
- 15-18: iOS Conf Singapore - Singapore
- 22-25: SnowCamp - France (Grenoble)
- 30-31: Re Work - USA (San Francisco)
- 31: Touraine Tech - France (Tours)
- 1-2: FOSDEM - Belgium (Brussels)
- 3: dotSwift - France (Paris)
- 3: GopherCon Israel - Israel (Tel Aviv)
- 14: DevFest Paris - France (Paris)
- 19-21: Frontend Developers Love - Netherlands (Amsterdam)
- 20-21: VueJS Amsterdam - Netherlands (Amsterdam)
- 23-26: O'Reilly Software Architecture Conference - USA (San Jose)
- 24-25: Unvoxxed Hawaii - Hawai (Honolulu)
- 26-28: ConFoo - Canada (Montreal)
- 28: DevFest du Bout du Monde - France (Brest)
- [Canceled] 2: dotPy - France (Paris)
- 4: Git Merge - USA (Los Angeles)
- 9-11: DevOps Gathering - Germany
- [Canceled] 11-13: VoxxedDays Bucharest - Romania (Bucharest)
- 11-15: JChateau - France (Amboise)
- [Canceled] 17: AWS Summit Paris - France (Paris)
- 17: APIDays Express - Jakarta
- [Canceled] 24: Nordic PGDay - Helsinki
- [Canceled] 25-27: BreizhCamp - France (Rennes)
- 28: GopherCon Russia - Russia (Moscow)
- 28-29: GopherCon India - India (Goa)
- [Canceled] 30: dotGo - France (Paris)
- [Virtualized] 30-31: KubeCon Europe - Netherlands (Amsterdam)
- [Canceled] 30-31: TSConf:EU - Linz (Austria)
- [Virtualized] 1-2: KubeCon Europe - Netherlands (Amsterdam)
- [Virtualized] 6-8: Google Cloud Next - USA (San Francisco)
- [Canceled] 20-23: O'Reilly Strata Data & AI London - UK (London)
- [Canceled] 27-28: Kafka Summit London - UK (London)
- [Canceled] 28-29: CodeMobile - UK (London)
- [Canceled] 29-30: MixIT - France (Lyon)
- [Virtualized] 6-7: GitHub Satellite - France (Paris)
- [Virtualized] 7: JAlba - Scotland (Edinburgh)
- [Virtualized] 12-14: Google IO - USA
- [Canceled] 13-15: Riviera DEV - France (Sophia Antipolis)
- 15: AFUP Day - France (Lille, Lyon, Nantes, Tours)
- [Canceled] 16: VoxxedDays Milano - Italy (Milano)
- [Virtualized] 20-21: GitOps Days
- 21-22: VoxxedDays Frontend Bucharest - Romania (Bucharest)
- [Canceled] 25-26: ngVikings - Oslo
- [Canceled] 26-28: GR8Conf & JDK IO - Denmark (Copenhagen)
- [Postponed in Automn] 26-28: RigaDevDays - Riga
- [Canceled] 28-29: NewCrafts Paris - France (Paris)
- [Delayed to Automn] 4-5: AlpesCraft - France (Grenoble)
- [Canceled] 4-5: BestOfWeb - France (Paris)
- 6: Flutter Conf Paris - France (Paris)
- 9-12: Craft Conf - Budapest (Hungary)
- [Canceled] 12: DevFest Lille - France (Lille)
- [Virtualized] 18: Cloud Ouest - France (Nantes)
- 15-18: DockerCon - USA (Austin)
- 15-18: O'Reilly Infrastructure and Ops Conference - USA (Santa Clara)
- [Canceled] 18-19: VoxxedDays Luxembourg - Luxembourg
- 23-25: Spark+AI Summit - USA (San Francisco)
- [Virtualized] 27: Hack Commit Push - France (Paris)
- [Virtualized] End of June GopherCon Europe - Germany (Berlin)
- [Canceled] 1: Serverless Days Paris - France (Paris)
- 1-3: Scala Days Berlin - Germany (Berlin)
- [Canceled] 1-3: Devoxx France - France (Paris)
- 1-3: DroidCon Berlin - Germany (Berlin)
- [Canceled] 2-3: Sunny Tech - France (Montpellier)
- 11: GoWayFest - Belarus (Minsk)
- 17-20: Oxidize - Germany (Berlin)
- [Canceled] 19-24: JCrete - Crete (Orthodox Academy of Crete)
- [Virtualized] 23-24: CodeLand Conference
- 19-21: GopherCon UK - UK (London)
- 24-26: Devoxx UK - UK (London)
- 24-29: Foss4G - Canada (Alberta)
- [Canceled] 9-11: KotlinConf - Canada (Montreal)
- 11: JUG Summer Camp - France (La Rochelle)
- 14-17: O'Reilly Strata Data & AI New York - USA (New York)
- 15: VoxxedDays Zurich - Zurich
- 17-18: DevOps Days Istanbul - Istanbul
- 24-25: DevOps Days London - UK (London)
- 29-30: DevOps Days Prague - Prague
- 30: GreenConf.io - France (virtual conf because of COVID)
- 8-9: Spring I/O - Spain (Barcelona)
- 15: DevopsDays Paris - France (Paris)
- [Canceled] 15-16: DevFest Nantes - France (Nantes)
- [Canceled] 15-16: Volcamp - France (Clermont-Ferrand)
- 15-16: VoxxedDays Thessaloniki - Greece (Thessaloniki)
- 22: Incontro DevOps - Italy (Bologna)
- 16-17: RustLab - Italy (Firenze)
- [Virtualized] 19-22: EclipseCon 2020 - Germany (Ludwigsburg)
- 26-30: Le Halloween des Speakers 2020 - France (Remote)
- 27-29: SRECon - Netherlands (Amsterdam)
- 27-29: European Cloud Conference - France (Nice)
- [Canceled] 30: BDX I/O - France (Bordeaux)
- xx: SoCraTes - France (xx)
- 3-5: DevoxxMA - Morocco (Agadir)
- 4: Kubernetes Community Day - France (Paris)
- [Canceled] 5-6: DevFest Toulouse - France (Toulouse)
- 5-7: DevoxxUkraine - Ukraine (Kyiv)
- 16-19: O'Reilly Infrastructure and Ops Conference - Germany (Berlin)
- 19: Codeurs en Seine - France (Rouen)
- [Virtualized] 19: Cloud Nord - France (Lille)
- 27-28: DroidCon Turin - Italy (Turin)