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Fluxer

A chat app that puts you first·fluxer.app

Free plan · Open source See pricing ↓

Fluxer is a free and open source instant messaging and VoIP chat app built for friends, groups, and communities. It offers direct messages, group chats, and community channels, along with voice and video calls, screen sharing, and moderation tools. Fluxer can be used via a browser or downloaded for macOS, and its backend can also be self-hosted under the AGPLv3 license. The product is currently in public beta.

What it's for

Direct messaging and group chatsBuilding and organizing communities with channelsVoice and video calls with screen sharingCommunity moderation with roles, permissions, and audit logsSelf-hosting a private chat backend

Features 20

Audit logs for transparency
Built-in screen sharing
Custom CSS themes
Full Markdown support in messages
Granular roles and permissions
Join calls from multiple devices at once
Manage friends and block users
Moderation actions and tools
Mute, deafen, and camera controls
Noise suppression and echo cancellation
Organized channels for communities
Private DMs and group chats
Quick switcher with keyboard shortcuts
Search message history with filters by users and dates
Self-hosting of the backend (AGPLv3)
Share files and preview links
Sixteen voice regions across six continents
Upload custom emojis and stickers
Voice and video calls
Webhooks and bot support

At a glance

free tieropen sourceself-hostableAPI

TypeWeb app

DeploymentHybrid

PlatformsWeb, macOS

LanguagesArabic, Bulgarian, Czech, Danish, German, Greek, English (United Kingdom), English (US), Spanish (Latin America), Spanish (Spain), Finnish, French, Hebrew, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Dutch, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Swedish, Thai, Turkish, Ukrainian, Vietnamese, Chinese (Simplified), Chinese (Traditional)

Forfriends, groups, communities

CompanyFluxer Platform AB · 2025

Complianceself-reported

EU Digital Services ActGDPR

Resources

Pricing

Fluxer is funded by an optional premium subscription called Fluxer Plutonium; no specific price is stated on the provided pages.

FreeFree

Fluxer is free and open source; the core app is usable without payment.

Fluxer PlutoniumQuote

Optional premium subscription that funds Fluxer's infrastructure and development; no specific price stated on the provided pages.