The present application discloses methods and systems for synchronizing duplicated contents between multiple terminals. By establishing a mapping relationship between multiple accounts for different application programs installed on different terminals, a server may transmit captured contents between the accounts so that the contents are displayed and/or further distributed. After receiving a content forwarding request from a second account associated with a browser application in a second terminal, the server may process the content forwarding request, which includes the captured contents and identifiers. Using the identifiers and the mapping relationship, the server may identify a first terminal with an instant messaging application having a first account. The captured contents may be transferred to the first account so that the captured contents may be displayed and/or further distributed. The present application provides additional convenience and efficiency for multi-terminal operations.