Software · Development

Boxi

Boxi is a terminal emulator, available on Linux.

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: Allison Karlitskaya
Latest version: 6.1 (22 March 2025)
Latest activity: 25 March 2026
Source code: github.com/allisonkarlitskaya/boxi

Overview

Boxi is a terminal emulator, available on Linux. Other documented uses: emulation.

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

“Terminal emulator for use with Toolbox” — official website, 10 November 2026
“Terminal emulator for use with Toolbox” — official website, 10 November 2026

At a glance

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

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

This is a thought-experiment app based around the idea of having a terminal emulator running in a separate container from the session inside of it, with the kernel as the only intermediary. This is accomplished by means of file descriptor passing of the pseudo-terminal device from a small "agent" program running on the other side of a container boundary. The agent is started using the usual container tools (flatpak-spawn, toolbox, podman), but creating a session is done purely via sockets. Boxi uses different application identifiers when it is run for different containers. This allows creating individual launcher icons for each container.

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) — 10 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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