GreenTeaSpeak is a community-focused voice communication platform for gaming squads, clans, and friends. It gives users control over their own voice server, with a free server download and no licence requirement for basic use. The service supports up to 500 slots per virtual server without a licence, while optional premium licences and hosting can provide additional slots, music bots, and other conveniences.

Users can connect through a browser-based client or desktop apps, with mobile options also listed. Features include OPUS-quality voice, video and screen sharing, finely managed permissions, private messages, channel-spanning chat history, invisible channels, and file sharing without upload limits. Music bots include web-based controls, and servers can run on users’ own hardware, including for LAN or offline use.

GreenTeaSpeak offers downloads for its current and legacy clients, server software, and related tools. The website also provides migration guidance for TeaSpeak users, a quick-start guide, community forums, bug reporting, feature requests, support tickets, FAQs, and links to hosting partners.