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End-to-end encrypted messaging, voice, video, and file sharing for organizations.

Connect teams and partners with encrypted messaging, calls, and file sharing.

A secure messaging product for internal teams and external stakeholders with Matrix interoperability.

Compliance-focused messaging for financial-services teams and market participants.

Private business messaging with encrypted groups, files, voice calls, and disappearing messages.

Keep encrypted workplace messaging on a self-hosted XMPP server.

A private team messenger and conferencing app for business groups.

A free Markdown notebook that stores notes as ordinary files and offers optional encrypted sync.

A local-first Markdown note app with an optional self-hosted encrypted sync server.

Give teams private messaging with managed group chat rooms and file sharing.

Manage several encrypted-folder backends from a desktop interface

Manage corporate messaging with group chats, offline delivery, and centrally administered message archives.

A maintained Thunderbird fork with encrypted-message search

Organize team messages, channels, and calls with optional end-to-end encrypted chats.

Managed enterprise messaging with one-to-one, group, and broadcast conversations.

A managed business messenger with group chat, calling, file sharing, and organization controls.

A private, open-source writing app built around searchable notes, pins, and trails.

Local Markdown notebooks with backlinks, search, and optional self-hosted encrypted sync.

Plan and share personal or professional events in an encrypted calendar across desktop and mobile apps.

An open-source handwriting notebook with nested folders and encrypted cross-device sync.

Connect distributed services through lightweight subject-based messaging, with optional persistence via JetStream.

AI-native Markdown notes with encrypted sync for developers

Run secure messaging and calls with control over deployment and federation.

Run secure team chats, channels, and file sharing alongside on-premises video conferencing.