YouTube is expanding its in-app video sharing and messaging feature to key markets including the U.S., U.K., Brazil, Singapore, and various U.S. territories. Users aged 18 and older can share videos and engage in discussions without leaving the app. The messaging system operates through an invitation process, allowing users to send invite links that expire after seven days. Once connected, users can share long-form videos, Shorts, and live streams, and have the ability to unsend messages, block, or report others. This feature is not available for Brand Accounts and is governed by YouTube’s Community Guidelines, with content not used for ad targeting. The original messaging feature was discontinued in 2019 but was reintroduced as a pilot in Ireland and Poland in November 2025, later expanding to 31 European countries. YouTube plans to further expand this feature, though specific markets and timelines are not yet disclosed.