The Altus desktop client packages WhatsApp Web with themes and notifications, providing a desktop interface for messaging.
Open sourcePick
24 alternativesFluux
Fluux Messenger is a cross-platform XMPP client for communities and organizations.
About Fluux
Fluux Messenger is a cross-platform XMPP client for communities and organizations. It supports direct chats and multi-user rooms with threaded replies, emoji reactions, rich text formatting, file sharing, link previews, polls, and end-to-end encryption, with light and dark modes and customizable themes.
Moderation allows deleting own messages and removing room messages, but bulk actions apply only to messages already loaded when the dialog opened, do not scan the full archive or purge the server database, and are unavailable for cached messages until their IDs are confirmed.
Key features
- Threaded replies, emoji reactions, and rich text formatting
- Multi-user chat rooms with roles, reactions, and polls
- File sharing with drag-and-drop, thumbnails, and previews
- Automatic Open Graph previews for shared URLs
- Message retraction and bulk moderation by sender or text
- 14 built-in themes with custom accents and font settings
Best for: Communities and organizations that communicate over XMPP.
Good for
- Open source codebase available on GitHub
- Supports group rooms with roles, reactions, and polls
- Offers light and dark modes with 14 themes and font settings
Watch out for
- Bulk moderation includes only messages already loaded when dialog opened
- Moderation does not scan full archive or purge server database
- Cached messages with uncertain IDs cannot be removed until IDs are confirmed
Fluux at a glance
- Category
- Social & Communities › Messaging Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Fluux alternatives
Tools and sites you could use instead, ranked by how closely they match.
Matterbridge connects chat platforms including IRC, Slack, Discord, Telegram, Matrix, and Mattermost through message bridges.
Open source
24 alternatives
Zulip provides an open-source team chat server and web application for team collaboration and focused discussions.
Open source
24 alternatives
WhatsApp Chat Exporter parses chat databases from Android or iOS backups and exports readable HTML or structured JSON.
Open source
24 alternatives
Ferdium brings multiple messaging and productivity services together in one desktop application.
Open source
24 alternatives
This guide helps newcomers start chatting with XMPP by explaining how to choose and use compatible clients.
Popular in Messaging Apps
Well-known listings from the same topic.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.