Apple's 31st Worldwide Developers Conference was a digital-only event in 2020, with no physical gathering in California due to the ongoing global health crisis.

The virtual WWDC event kicked off on June 22, and it was free for everyone. The online event allowed millions of developers to get access to future versions of iOS, iPadOS, macOS, watchOS, and tvOS, as well as engage with Apple engineers through engineering sessions, one-on-one lab appointments, and the revamped Apple Developer Forums.

Apple's keynote event took place on Monday, June 22 at 10:00 a.m. Pacific Time. The event was streamed directly from Apple Park and can be replayed on Apple.com, the Apple Developer app, the Apple Developer website, the Apple TV app on the Apple TV, or YouTube.

Apple provided a full digital WWDC experience with online keynote, a Platforms State of the Union for developers, technical and design-focused engineering sessions, Apple Developer Forums with Apple engineer participation, and one-on-one developer labs. Apple also hosted a Swift Student challenge, though winners received a jacket, pins, and virtual one-on-one lab sessions with Apple engineers rather than free admission to WWDC.

Engineering sessions and videos can be viewed on the Apple Developer website or in the Apple Developer app, which is available for iPhone, iPad, and as of 2020, the Mac.