LinkedIn uses native emoji support both on the web, as well as in apps for iOS and Android. This means that Android users see emojis from either Samsung (on Samsung devices) or Google (on all other Android devices).

Users of iOS, iPadOS or macOS see emojis rendered using Apple's emoji designs. Accessing LinkedIn using a web browser on Windows shows emojis from Microsoft.

LinkedIn provides emoji reaction ("reactji") options for responding to comments, which are labelled as:

Each emoji reaction in LinkedIn has a distinct design, though these are not used for general emoji support on the platform.