Nextcloud Talk

What Nextcloud Talk is

Nextcloud Talk combines meetings, chat, and webinars in a communication platform that can be self-hosted, run on premises, or hosted by a trusted local provider. It supports private, group, and public calls, invitations for outside participants by URL, and chat that remains available after a call ends. Users can share Files documents in chats, link rooms with files, calendars, and tasks, and collaborate through online office sidebars. Talk supports federated chats and calls across Nextcloud servers and bridges to services including Slack, Microsoft Teams, Matrix, IRC, Mattermost, and XMPP. It runs in browsers and on Windows, macOS, Linux, iOS, and Android, with a public API for app integrations. Listed security measures include end-to-end encrypted calls, layered encryption, brute force protection, suspicious-login detection, and a $10,000 security bug bounty. Small private deployments typically handle 6–10 participants, or up to 20 with good connections and no video. Webinars, public video calls with a lobby, and SIP dial-in require the High Performance Backend; large calls also require substantial bandwidth and processing capacity.