Asynchronous collaboration via a communication platform is described. A message representative of an asynchronous meeting can be displayed via a user interface of a communication platform. The user interface can include an affordance to enable a user to add a snippet of content to the asynchronous meeting. In response to detecting an actuation of the affordance, an input user interface that includes an option to record or upload the snippet of content can be displayed. The snippet of content can be received from a client of a user associated with the asynchronous meeting and can be associated with other snippet(s) of content added by other user(s) associated with the asynchronous meeting. A preview summary of snippet(s) of content associated with the asynchronous meeting can be displayed in association with the message, wherein each snippet of content is viewable via a thread associated with the message.