Self-hosted alternatives to Facebook Messenger

Rocket.Chat

★ 45,690

Rocket.Chat is a complete communication platform (chat, voice, video) that puts data protection first. It's the self-hosted alternative to Slack for companies that need control and compliance.

Novu

★ 39,184

Notification infrastructure for developers.

Mattermost

★ 38,130

Mattermost is a secure team chat, similar to Slack, geared toward development and integrated with Git. Self-hosted, it keeps the company's conversations and files on your own infrastructure.

Chatwoot

★ 33,251

Chatwoot is a customer support hub (live chat, email, social media) in one place. It's the self-hosted alternative to Intercom and Zendesk, with no per-agent cost.

ntfy

★ 30,915

Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify.

Zulip

★ 25,389

Zulip is a powerful, open source group chat application.

Apprise

★ 16,775

Apprise allows you to send a notification to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc.

Gotify

★ 15,165

Notification server with Android and CLI clients (alternative to PushBullet).

Tinode

★ 13,391

Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots.

Element

★ 13,233

Fully-featured Matrix client for Web, iOS & Android.

SimpleX Chat

★ 11,315

The most private and secure chat and applications platform - now with double ratchet E2E encryption.

Centrifugo

★ 10,427

Language-agnostic real-time messaging (Websocket or SockJS) server.