Software · Internet & communication

Mirror Hall

Use Linux devices as second screens.

Completely free
Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: GPL-3.0+ — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Raffaele T.
Latest version: 0.1.1 (4 December 2024)
Latest activity: 3 May 2026
Source code: gitlab.gnome.org/r/mirrorhall

Overview

Features described in its Flathub listing: hardware acceleration.

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

“It is designed on both desktop and mobile devices, and supports both hardware-accelerated and software-based encoding to stream video efficiently.” — Flathub, 10 November 2026

At a glance

Mirror Hall is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-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.

Strengths

Open source code
Commercial use allowed

About

Mirror Hall is an experimental app that aims to turn any Linux device into a second monitor. It is designed on both desktop and mobile devices, and supports both hardware-accelerated and software-based encoding to stream video efficiently. Mirror Hall makes use of a new, experimental GNOME feature to create virtual monitors, and requires UDP traffic to be allowed by the network and firewall. Support for other desktops will be added once a standardized API exists.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 7 November 2026
Last technical check: 5 November 2026
Description from Flathub — AppStream (Flathub)

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