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Software · Internet & communication

Fluxer

Fluxer is a messaging program, available on Windows and Linux: screen sharing, group chats and calls.

  • Completely free
  • Windows and Linux
  • Open source
  • No account

Overview

Fluxer is a messaging program, available on Windows and Linux.

Features described in its Flathub listing and on its official website: screen sharing, group chats and calls.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “A chat app that puts you first” — Flathub, 10 November 2026
  • “Fluxer is a free, open source Discord alternative for friends, groups and communities, with text, voice, video, screen sharing and self-hosting.” — official website, 10 November 2026
  • “Direct messages and group chats” — Flathub, 10 November 2026
  • “Fluxer is a free and open source instant messaging and VoIP platform built for friends, groups, and communities.” — Winget, 10 November 2026

At a glance

All of Fluxer is free: no feature is locked behind a paid plan, and its code is open.

Its licence (AGPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Plans and conditions

  • Partner content: some results come from partner libraries, under their own (often paid) licences.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

Fluxer is a free and open-source instant messaging and voice-over-IP application. It provides text chat, voice calls, video calls, and screen sharing in a modern interface. Features include: Text messaging with rich formatting and media support Voice and video calls Screen sharing Communities with channels Direct messages and group chats Custom emoji and reactions

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Winget (Windows Package Manager) (credit card, account, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (limits, commercial use) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

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