A chat app that puts you first
Public beta·
Made in Sweden
Made in SwedenFluxer is a free and open source instant messaging and VoIP platform built for friends, groups, and communities.
Try Fluxer without an email in 30 seconds
What's available today
All the basics you expect, plus a few things you don't.
Messaging
DM your friends, chat with groups, or build communities with channels.
- Full Markdown support in messages
- Private DMs and group chats
- Organized channels for communities
- Share files and preview links
Voice and video
Hop in a call with friends or share your screen to work together.
- Join from multiple devices at once
- Built-in screen sharing
- Noise suppression and echo cancellation
- Mute, deafen, and camera controls
Moderation tools
Keep your community running smoothly with roles, permissions, and logs.
- Granular roles and permissions
- Moderation actions and tools
- Audit logs for transparency
- Webhooks and bot support
Search and quick switcher
Find old messages or jump between communities and channels in seconds.
- Search message history
- Filter by users, dates, and more
- Quick switcher with keyboard shortcuts
- Manage friends and block users
Customization
Add custom emojis, save media for later, and style the app with custom CSS.
- Upload custom emojis and stickers
- Save images, videos, GIFs, and audio
- Custom CSS themes
- Compact mode and display options
Learn more
Self-hosting
Run the Fluxer backend on your own hardware and connect with our apps.
- Fully open source (AGPLv3)
- Host your own instance
- Use the desktop client (mobile coming soon)
- Switch between multiple instances
Get involved
Fluxer is built in the open. Pick the path that fits how you like to help.
Join and spread the word
We're limiting registrations during beta. Once you're in, you can give friends a code to skip the queue.
Join Fluxer HQ
Get updates, see upcoming features, discuss suggestions, and chat with the team.
Follow us on Bluesky
Stay updated on news, service status, and what's happening. You can also subscribe to our Bluesky RSS feed or Blog RSS feed.
Report bugs
Approved reports grant access to Fluxer Testers, where you can earn points for Plutonium codes and the Bug Hunter badge.
Contribute code
Fully open source (AGPLv3)
Found a security issue?
We appreciate responsible disclosure via our security bug bounty page. We offer Plutonium codes and Bug Hunter badges based on severity.
Ready to get started?
Download the app or open Fluxer in your browser to start connecting with your communities.