>_ Asterism — a terminal for Windows

Every host you work on,
in one night sky.

Tabs grouped by the server they connect to, splits that open in the same place, and a drawer for history, snippets and what your AI agents are running. It looks good before you touch a single setting.

Windows 10 / 11 (64-bit) $12.99 one-time · lifetime · any number of PCs English / 日本語
⁂

Grouped by host

Each connection gets its own color and its own set of tabs. A new tab in the group opens instantly, already signed in.

⬌

Split where you are

Right-click, a toolbar button or a shortcut. The new pane opens on the same host, in the same folder.

⇥

A drawer, not a sidebar

Hosts, history, snippets and activity slide out to the right. The window grows, so your terminal keeps its width.

Try it right here

Switch hosts at the top, split the pane, open the drawer and run something from history. Nothing here connects anywhere.

>_ Asterism
UTF-8 Copy on select: off
Color scheme:

This demo runs in your browser. The real app uses ConPTY, xterm.js and your own shells.

See it on a real Windows desktop

Connecting, splitting, history, the activity drawer and a theme change, recorded from the app itself with sample hosts.

No sound. Recorded on Windows 11.

Less typing the same things again

Built for people who live on a few servers, and for people who would rather click than remember flags.

~/.ssh/config · Vagrant

Your hosts, already there

Reads ~/.ssh/config including # @group and @color comments, and lists Vagrant machines with start, stop and connect buttons.

Ctrl + Shift + H

History you can re-run

Every command with its host, folder, exit code and time. Click ▶ and it runs again on the host it came from.

{{variables}}

Snippets with blanks

Save the commands you always look up. {{name:default}} turns into a small form with a live preview.

AI agents

See what your agent runs

When an AI CLI starts child processes, the Activity drawer shows each one: command, folder, time, CPU and exit code.

Ctrl + Shift + O

Copy just the last output

Shell integration knows where each command's output starts and ends, so you can copy exactly that, ready to paste anywhere.

Stars · Aurora · Your image

Good-looking defaults

A quiet starry sky, a green scheme made for it, a tidy prompt and bundled fonts. Or bring your own image and color scheme.

Every button has a shortcut

Click when you are learning. Use the keys once you know them.

New tabCtrl+Shift+T
Split right / downCtrl+Shift+D / E
Maximize the pane, and backCtrl+Shift+Enter
Move between panesCtrl+Alt+←↑↓→
History / search historyCtrl+Shift+H / R
SnippetsCtrl+Shift+K
Copy the last command's outputCtrl+Shift+O
Copy on select, on / offCtrl+Shift+S
Close the paneCtrl+Shift+W
SettingsCtrl+,

Eight color schemes to start

The UI accent follows the scheme, so Amber CRT makes the whole app amber. Click one to try it in the demo.

Your commands stay on this PC

Terminal history is full of server names, paths and the odd password. Asterism keeps it to itself.

Every feature, free for 14 days

The trial has no limits. If you like it, pay once and keep it for life, with every update included.

Asterism license

$12.99one-time · USD
  • All features included
  • Lifetime license, no subscription
  • Use it on all your PCs and virtual machines
  • All future updates included
Buy a license soon Download the free trial soon
  1. Download and try it
  2. Buy a license
  3. Enter your key

Requires Windows 10 or 11, 64-bit. Version 0.1.0 (preview).

Y

Made by Yunolay

I wanted a terminal where my servers sit together like stars in a constellation, and where I can see what my AI agents are doing. Asterism is that terminal.

yunolay.com →

Frequently asked questions

Which shells does it support?

PowerShell, Windows PowerShell, cmd, Git Bash and WSL are detected automatically. SSH uses the OpenSSH that ships with Windows.

Does it change my shell's config files?

No. The prompt and shell integration are loaded by Asterism when it starts a shell. Your profile, .bashrc and ~/.ssh/config are left alone.

Do I need an AI subscription?

No. The terminal works fully without AI. The Activity drawer watches processes on your PC and needs no AI service at all.

What happens when the trial ends?

You can no longer open new terminals. Your settings, hosts, history and snippets are all kept, so as soon as you enter a license key, everything is back the way you left it.

Does it work without an internet connection?

Yes. Activation needs an internet connection, but after that it keeps working offline for 30 days from the last check. Apart from that, only update checks use the network.

How many PCs can I use it on?

As many as you like. The license is for you, not for a machine: your desktop, your laptop and your virtual machines are all covered. Please buy one license per person.

Does it run on Mac or Linux?

Not yet. Windows 10 / 11 (64-bit) comes first. A macOS and Linux version is a goal, not a promise. If it comes, your license will cover it too.

Can I use my own background image and colors?

Yes. Pick any image (brightness is adjusted so text stays readable) and import color schemes from Windows Terminal or iTerm2.

Can I get a refund?

We refund within 14 days of purchase if Asterism does not work properly on a PC that meets the requirements and support cannot fix it, or if you bought twice by mistake. See the refund policy for details.

When will it be released?

It is in development now. Follow yunolay.com for news.

Try Asterism free for 14 days.

$12.99 once, yours for life, with a 14-day free trial.

See pricing