Jitsi
Computer program
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Jitsi is a collection of free and open-source multiplatform voice, video conferencing and instant messaging applications for the Web platform, Windows, Linux, macOS, iOS and Android. The Jitsi project began with the Jitsi Desktop. Wikipedia
Developer: 8x8
Available in: Austrian, English, French, German, Bulgarian, Japanese, Spanish, Italian, Romanian, Greek and 25 more
Initial release: 2003; 21 years ago
Stable release: 2.10 / 1 October 2017
Written in: Java, JavaScript, TypeScript, Lua