AChat

Lightweight LAN messenger for small teams with basic chat, channels, notes, and file sharing

Desktop application that makes it easy to check your feed

A free tool used to text, call and video chat

Feature-rich open-source Telegram client offering multi-account support, enhanced privacy, and flexible media playback

Well-rounded VoIP software that enables free communication using any modern device

Free, browser-based video conferencing platform emphasizing strong encryption, privacy, and essential collaboration features

Instant messaging and calling app for multiple platforms