Messenger-GTK is a convergent graphical messaging application using the GNUnet Messenger service. The goal is to provide private and secure communication between any group of devices.

The application provides the following features:

• Creating direct chats and group chats
• Managing your contacts and groups
• Invite contacts to a group
• Sending text messages
• Sending voice recordings
• Sharing files privately
• Deleting messages with any custom delay
• Renaming contacts
• Exchanging contact details physically
• Verifying contact identities
• Switching between different accounts
• Chatting live via video or voice streaming
• Sharing your screen with a selected group
• Writing notes to yourself

Chats will generally created as opt-in. So you can decide who may contact you directly and who does not, accepting to a direct chat. Leaving a chat is also always possible.