Konflist - Curated list of tech conferences all around the world!
All Design Conferences - A list of all front-end and design conferences
Event Hunt - Startups and Tech Events Curated By Locals
Design Conferences 2019 - Discover the best design conferences
Leade.rs - Leaders matches event organizers with speakers in tech.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.