SelfHostHub

Fluxer

Instant messaging and VoIP platform built for friends, groups, and communities (alternative to Discord).

10,614 starsAGPL-3.0

Details

Website
fluxer.app
Source
github.com
Demo
fluxer.app
Licence
AGPL-3.0
Platforms
Docker
GitHub stars
10,614
Last update
2026-10-18

Open-source alternative to

Categories

Communications platform that puts data protection first (alternative to Gitter.im and Slack).

Communication - Custom Communication SystemsMIT

Novu

40k

Notification infrastructure for developers.

Communication - Custom Communication SystemsMIT

Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).

Communication - Custom Communication Systems⊘ Proprietary

Customer communication platform (alternative to Intercom and Zendesk).

Communication - Custom Communication Systems⊘ Proprietary

ntfy

35k

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

Communication - Custom Communication SystemsApache-2.0

Zulip is a powerful, open source group chat application.

Communication - Custom Communication SystemsApache-2.0