Apache Pulsar
pulsar.apache.orgBuild a distributed messaging and streaming system with topic subscriptions and persistent message storage.
Build a distributed messaging and streaming system with topic subscriptions and persistent message storage.
Pre-1.0 encrypted team chat for organizations handling sensitive information.
A threaded team messenger with encrypted direct messages and optional agents inside workplace conversations.
OpenPGP mailboxes bundled with encrypted file storage
Configurable browser with blocking and encrypted sync
Browse compatible encrypted filesystems inside Android
Encrypted IPv6 overlay with public-key-derived addressing
Keep a working folder and an encrypted folder in sync
Secure frontline messaging and voice calls with groups synced to HR data.
Structure team messages with nested channels, asynchronous discussions, and deep integrations.
Secure business messaging with persistent group chats and centralized controls.
Connect team chats with calls, meetings, files, and shared work.
Give clients and teams persistent group and one-to-one chat inside a secure collaboration portal.
A dedicated internal messenger offered as air-gapped, self-hosted, on-premises, or cloud-hosted.
A secure enterprise messenger for 1:1 and group chat with audit and channel-routing features.
Exchange office messages, group chats, and files on a private LAN or WAN without a dedicated server.
Enterprise messaging with persistent chat, channels, meetings, and cloud or on-premises deployment.
Keep direct and group conversations in context with channels, threads, reactions, and voice notes.
A Matrix-based work messenger with direct chats, group rooms, bridges, and optional self-hosting.
Self-host an XMPP server for instant messaging and group chat.
Business messaging with LINE connectivity and a set of everyday workplace tools.
A workspace for team channels, threaded messaging, and shared documents.
Product-led messaging with event segments and separate project workspaces