When comparing Windows Terminal vs Extraterm, the Slant community recommends Windows Terminal for most people. In the question“What are the best terminal emulators for Windows?” Windows Terminal is ranked 8th while Extraterm is ranked 33rd.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Official Microsoft product
Pro Is an *actual* terminal emulator--what a Linux user would expect--like xterm
Not a command prompt/processor (i.e. shell) but a host for such applications.
Pro Multiple shell support
Pro Open Source under the MIT License
Pro Easy and well documented JSON settings
Pro Microsoft is nailing on its features
Pro speed
not the fastest ever, but for me its a good comprimise of features vs performance
Pro Cross platform
Pro Supports tab, splits and panes
You can set up your own layout with multiple splits and tabs.
Pro Shell integration
The shell integration makes it possible to group in command output in "frames" which show success/failure.
Pro Image support
You can view images and other data types like audio directly in the terminal.
Pro Keyboard based text selection
It is possible to go into a cursor mode where you can select text just like in a text editor. It even supports multiple cursors.
Pro Global shortcuts
You can configure global shortcuts to open the terminal.
Pro Keyboard friendly "Command Palette"
Just like Sublime, Atom and VSCode you can easily search and find commands from the drop down Command Palette.
Cons
Con Requires latest version of Windows 10
Con Cannot have a mix of elevated and non elevated tabs
Con Unstable and buggy
Sometimes freezes and/or crashes.
Con Configured via (mostly) documented json
Con Slow
Con Doesn't have feature "Open Context Menu"
Poorly, this perfect terminal doesn't has this feature for Windows version.
