How can I export a chat?

To save a chat outside of Threema, you can export it as an encrypted ZIP file (which will contain the chat as text file and, optionally, all media files). Please note that exported chats cannot be imported into Threema again; to transfer your chats to another device (or to restore them later on the current device), use a data backup. 

To export a chat, please proceed as follows:

• Android: In the chat list, tap and hold a chat, and then tap the “Share” button. You can save or send the chat as an encrypted ZIP file using your installed apps.
• iOS: In a chat’s detail view, tap “Export Chat.” (To open a chat’s detail view, open the chat and tap on the contact’s name.)

Chat exports are encrypted using the Advanced Encryption Standard (AES). Therefore, a modern file archiver, such as 7-Zip for Windows, is required to unpack a chat export. Some other apps don’t recognize the encryption and return an error message stating that the provided password is incorrect (even though you have entered the password correctly).