termux-desk 0.1.0

A web-based remote desktop for Termux and PRoot X11 environments

TermuxDesk

A lightweight, web-based remote desktop for Termux and PRoot X11 environments.

TermuxDesk captures an existing X11 display with Pillow, streams JPEG frames through an aiohttp WebSocket, and injects mouse and keyboard events with the XTest extension through python-xlib. It does not need root or sudo.

Project status: 0.1.0 is an alpha release. Test it with your desktop and window manager before relying on it.

Demo

Requirements

• Python 3.9 or newer
• A running X11 server with the XTest extension
• DISPLAY set to that server, such as :0
• cloudflared only when using --tunnel

TermuxDesk provides the remote viewer; it does not start Termux:X11, Xvfb, a desktop environment, or a window manager.

Install

From PyPI:

python -m pip install termux-desk

From a checkout:

python -m pip install .

Termux one-liner:

curl -fsSL https://raw.githubusercontent.com/YBeeTeam/termux-desk/main/install.sh | bash

The installer must run in Termux itself, not inside a Debian/Ubuntu PRoot. This matters because PRoot's apt repositories do not provide Termux's python package. Run Termux package installation first, then enter your PRoot if that is where the X11 session runs.

Quick Start

Start your X11 environment, identify its display, and run:

export DISPLAY=:0
termux-desk start

Open http://127.0.0.1:8765 in a browser on the same device.

To listen on the LAN:

termux-desk start --host 0.0.0.0

To create a temporary HTTPS URL:

termux-desk start --tunnel

Security warning: TermuxDesk 0.1.0 has no built-in authentication. Anyone who can reach the URL can view and control the X11 session. A Cloudflare Quick Tunnel URL is public. Share it only with trusted people, stop it after use, and prefer Cloudflare Access or another authenticated proxy for ongoing access.

Browser Controls

• Click mode sends primary clicks on tap or mouse release.
• Drag mode holds the primary button while the pointer moves.
• Mouse movement, double-click, wheel, and horizontal scroll are supported.
• Keyboard events are sent while the viewer page has focus.
• The Help button shows the controls in the viewer.

Browser and operating-system reserved shortcuts may not reach the remote desktop.

CLI Reference

termux-desk start [--host HOST] [--port PORT] [--display DISPLAY]
                  [--fps FPS] [--quality 1..95] [--tunnel]

Option	Default	Description
--host	127.0.0.1	HTTP listen address
--port	8765	HTTP listen port
--display	$DISPLAY	X11 display name
--fps	12	Maximum capture rate
--quality	70	JPEG quality from 1 to 95
--tunnel	off	Start a Cloudflare Quick Tunnel

Use termux-desk --version to print the installed version and Ctrl+C to stop the server and tunnel.

Python API

The public API has no third-party import side effects. Runtime dependencies and the X11 connection are loaded when the server starts.

from termux_desk import TermuxDeskServer

server = TermuxDeskServer(
    host="127.0.0.1",
    port=8765,
    display=":0",       # defaults to the DISPLAY environment variable
    fps=12,
    quality=70,
)
server.run()

For an existing asyncio application:

server = TermuxDeskServer()
await server.start()
print(server.local_url)
# ... application work ...
await server.stop()

termux_desk.run_server(**options) is a blocking convenience function. TermuxDeskError is raised for missing dependencies, an unset or unreachable display, missing XTest support, and tunnel startup failures.

Troubleshooting

DISPLAY is not set

Set it to the display used by your X11 session:

export DISPLAY=:0

Could not connect to X11 display

Verify the server is running, the display number is correct, and the process has permission to connect. From a PRoot environment, preserve or explicitly set DISPLAY.

cloudflared was not found

Install it in Termux:

pkg install cloudflared

Pillow fails to install in Termux

Install its native build dependencies, then retry:

pkg install python clang make pkg-config libjpeg-turbo libpng
python -m pip install Pillow

Architecture

The root page serves a viewer embedded directly in termux_desk.server; there is no runtime template or static-file lookup. Each WebSocket client receives JPEG frames and sends small JSON input messages. Pointer coordinates are normalized in the browser, validated by the server, and scaled to the current X11 screen dimensions before XTest injection.

Contributing

1. Fork and clone the repository.
2. Create a virtual environment and run python -m pip install -e '.[dev]'.
3. Make a focused change and add tests.
4. Run pytest and python -m build.
5. Open a pull request describing behavior changes and the X11 environment used for manual testing.

Bug reports should include Python version, Termux/PRoot distribution, X server, window manager, browser, and the exact command used.

License

MIT © 2026 TermuxDesk contributors.