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A New Kind of Instant Messaging! Distributed, secure messenger with audio and video chat capabilities. Whether it's corporations or governments, digital surveillance today is widespread. Tox is easy-to-use software that connects you with friends and family without anyone else listening in. While other big-name services require you to pay for features, Tox is completely free and comes without advertising — forever.

Tox began a few years ago, in the wake of Edward Snowden's leaks regarding NSA spying activity. The idea was to create an instant messaging protocol that ran without any kind of central servers. The system would be distributed, peer-to-peer, and encrypted end-to-end, with no way to disable any of the encryption features; at the same time, the protocol would be easily usable by the layperson with no practical knowledge of cryptography or distributed systems. Work began during the Summer of 2013 by a single anonymous developer (who continues, to this day, to remain anonymous). This lone developer put together a library implementing the Tox protocol. The library provides all of the messaging and encryption facilities, and is completely decoupled from any user-interface; for an end-user to make use of Tox, they need a Tox client. Fast-forward a few years to today, and there exist several independent Tox client projects, and the original Tox core library implementation is nearing completion (in terms of features). Tox (both core and clients) has thousands of users, hundreds of contributors, and the project shows no sign of slowing down. Recently, a group of some of the project's major contributors have formed The Tox Project, an organization built around the protection, promotion, and advancement of Tox and its development.

1v1 messages
Client is able to send, receive and display text messages to / from friends.

If client doesn't implement Message splitting, message size is limited to 1372 bytes.

Audio
Client is able to capture, send, receive and play audio to / from friends, using toxav.

Audio filtering
Client is able to filter out noise from captured audio using libfilteraudio1).

User should be able to tun on / off audio filtering.

Audio notifications
Client should be able to play sound upon receiving message / call / other. There should be an option to turn those notifications off, or tune them according to user needs.

Avatars
Support for avatars according to STS2).

Changing nospam
Support for changing nospam via UI.

Chat logs
Client should have support for saving, loading, displaying and removing chat logs (history) of conversations.

Contact aliases
Client should allow user to set, display and remove alias for any friend.

Contact blocking
Client should allow user to block / unblock contacts.

Blocked friends would be unable to contact user, and user would appear to them as offline even if user is online

Size (7z): 15 Mb