Fluxer

Fluxer is a free and open source instant messaging and VoIP chat app built for friends, groups, and communities.

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Windows	macOS	Linux	Android	iOS
Installer (x64)	Disk image	Flathub	APK	TestFlight
Installer (ARM64)		deb (x64)	Obtainium
Portable (x64)		deb (ARM64)
Portable (ARM64)		rpm (x64)
		rpm (ARM64)
		AppImage (x64)
		AppImage (ARM64)
		tar.gz (x64)
		tar.gz (ARM64)

The macOS disk image runs on both Apple silicon and Intel. Windows and Linux need the build matching your processor.

On Linux, prefer a repository over a single file so Fluxer updates with the rest of your system.

Linux package repositories

Every repository serves both channels. The package is fluxer for stable, fluxer-canary for canary.

Flatpak

Stable is on Flathub, the easiest route on most desktops:

flatpak install flathub app.fluxer.Fluxer

Flathub has stable only. For canary, or to use Fluxer's own repository, open this reference file and your software manager takes over. Some desktops also accept flatpak+https://pkgs.fluxer.com/flatpak/fluxer.flatpakref in the address bar.

From a terminal:

flatpak install https://pkgs.fluxer.com/flatpak/fluxer.flatpakref

Debian and Ubuntu

sudo install -d -m 0755 /etc/apt/keyrings
sudo curl -fsSL -o /etc/apt/keyrings/fluxer-archive-keyring.gpg https://pkgs.fluxer.com/keys/fluxer-archive-keyring.gpg
sudo curl -fsSL -o /etc/apt/sources.list.d/fluxer.sources https://pkgs.fluxer.com/deb/fluxer.sources
sudo apt update && sudo apt install fluxer

Fedora and RHEL

sudo curl -fsSL -o /etc/yum.repos.d/fluxer.repo https://pkgs.fluxer.com/rpm/fluxer.repo
sudo dnf install fluxer

RHEL, Rocky, Alma and CentOS Stream need sudo dnf install epel-release first, because their base repositories lack libXScrnSaver. Fedora does not.

Arch Linux

The repository is signed, so pacman needs the key once:

sudo pacman-key --init
curl -fsSL -o /tmp/fluxer-archive-keyring.asc https://pkgs.fluxer.com/keys/fluxer-archive-keyring.asc
sudo pacman-key --add /tmp/fluxer-archive-keyring.asc
sudo pacman-key --lsign-key 09D01339EE128925F75E675C855C5BDE34D205D2

--lsign-key is what makes pacman trust it. Then add the repository:

sudo tee -a /etc/pacman.conf >/dev/null <<'REPO'

[fluxer]
SigLevel = Required TrustedOnly
Server = https://pkgs.fluxer.com/arch/$repo/os/$arch
REPO
sudo pacman -Syu fluxer

Write $repo and $arch literally. Both are pacman variables, not shell ones, hence the quoted heredoc.

Full setup notes, including canary, are in the Linux repositories documentation.

Other ways to run it

• Open Fluxer in a browser, no install needed.
• Host your own instance from this repository.

Documentation

• Documentation home
• Downloads
• Self-hosting

License

The source is licensed under the AGPL-3.0-or-later license.

Fluxer branding, icons, default avatars, badge artwork, screenshots and marketing imagery are copyright Fluxer, all rights reserved, as set out in fluxer_static/LICENSE. Third-party material keeps its own terms, listed in fluxer_static/THIRD_PARTY_LICENSES.md.

Public availability of this repository does not grant trademark, brand, or endorsement rights.