Deploy and Host Ubuntu Desktop (KDE Plasma) in your browser on Railway

A full Ubuntu desktop with KDE Plasma that runs in the cloud and opens in any modern browser, on a laptop, tablet or phone. Install anything with apt, browse the web, run Linux apps and keep your files between visits, all behind a username and password.

About Hosting Ubuntu Desktop (KDE Plasma) in your browser

The template runs the open source LinuxServer.io Webtop image (ubuntu-kde) as one Railway service. The desktop is streamed to your browser over Railway's HTTPS domain on port 3000, and HTTP basic auth protects it with CUSTOM_USER and a generated PASSWORD that you copy from the service Variables. A volume is mounted at /config, the desktop user's home folder, so files, settings and browser profiles survive restarts and redeploys. The first boot takes a minute or two while KDE starts.

Common Use Cases

A private Ubuntu desktop you can reach from any device, including Chromebooks and iPads
Running Linux-only apps or a full browser session away from your own computer
A remote workspace for downloads, builds or scripts that should keep running when your laptop is closed

Dependencies for Ubuntu Desktop (KDE Plasma) in your browser Hosting

No other services: one container plus a volume
A modern browser; Chrome, Edge, Firefox and Safari all work

Implementation Details

Open the Railway domain, sign in with CUSTOM_USER and PASSWORD, and the desktop loads. The desktop user has passwordless sudo, so you can install software:

sudo apt update &amp;&amp; sudo apt install -y gimp vlc

Give the service at least 2 GB of memory for a smooth KDE session; 4 GB is comfortable with a browser open. Image: lscr.io/linuxserver/webtop:ubuntu-kde (https://github.com/linuxserver/docker-webtop).

Why Deploy Ubuntu Desktop (KDE Plasma) in your browser on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Ubuntu Desktop (KDE Plasma) in your browser on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.