When comparing Tilda vs ROXTerm, the Slant community recommends Tilda for most people. In the question“What are the best terminal emulators for UNIX-like systems?” Tilda is ranked 16th while ROXTerm is ranked 21st. The most important reason people chose Tilda is:
There are tons of customizations you can make: from adding colors to text, turning backgrounds transparent, setting the size to be "maximized", toggling scrollbar on and off, adjusting orientation/borders/animation, etc.
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Pros
Pro Highly customizable
There are tons of customizations you can make: from adding colors to text, turning backgrounds transparent, setting the size to be "maximized", toggling scrollbar on and off, adjusting orientation/borders/animation, etc.
Pro Easily accessible drop-down
The drop-down function in Tilda does not get in the way and can be accessed at any time with a keyboard shortcut.
Pro Few dependencies
Tilda is a very minimal and lean terminal emulator. It requires very few dependencies and the amount of resources needed is small.
Pro Supports transparency
You can monitor information displayed by applications under Tilda.
Pro Tabs support
Tilda supports tabs. By default: to open a new tab press Ctrl + Shift + t. To move through them: Ctrl + PgUp/PgDn.
Pro Drag and drop
ROXTerm supports dragging and dropping items into the Terminal window.
Pro Advanced D-Bus usage
In ROXTerm, users can use D-Bus to configure terminals from other applications, allowing for communication between multiple computer programs.
Pro Includes a configuration manager
ROXTerm includes a configuration manager which can easily be run by selecting Configure...
in the terminal's menu, or by simply running roxterm-config
. You can then easily swap configuration files with other users, manage profiles, and customize things like color schemes or keyboard shortcuts.

Pro Supports GTK3
ROXTerm uses the latest GTK widget set which is great a multi-platform toolkit for creating graphical user interfaces.
Cons
Con Contains some annoying bugs
Tilda can be buggy at times. For example, if you don't close it before shutdown, it may prompt you to reconfigure it all over again on the next boot.
Con Uncertain future
The original developer, Tony Houghton, declared the death of Roxterm on 2016-05 at https://sourceforge.net/p/roxterm/discussion/422638/thread/60da6975/?limit=25#3fc9.
In 2018, work began to resume on Github rather than Sourceforge (https://github.com/realh/roxterm/issues/1) but the future maintenance is uncertain.
Con Not for regular users
ROXTerm is made for power users who spend most of their time on the terminal. For a regular user using ROXTerm it would be an overkill.
