When comparing Wterm vs Extraterm, the Slant community recommends Wterm for most people. In the question“What are the best terminal emulators for UNIX-like systems?” Wterm is ranked 28th while Extraterm is ranked 40th. The most important reason people chose Wterm is:
Wterm is very fast despite using very little memory.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fast
Wterm is very fast despite using very little memory.
Pro Memory efficient
Each instance requires only about 6.3 MB of RAM, even with 10.000 lines of buffer.
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 The official repository is inactive
The official repository for Wterm seems to be inactive, with open bug reports as far back as 2006.