In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms.

The landscape for instant messaging involves cross-platform instant messaging clients that can handle one or multiple protocols.

In video games with online gaming functionality, also called cross-compatible play, cross-platform play, crossplay, or cross-play describes the ability of players using different video game hardware to play with each other simultaneously.

A cross-platform interchange is a type of interchange between different lines at a metro (or other railway) station.