What tool do you want?
A stack trace formatter

Describe the solution you'd like
A tool that takes a text input - a stack trace, for example from Java, .NET, or Python, and formats it to improve readability.
An extra feature that would make this even more useful is some sort of color highlighting in the formatted output; for example, the formatter provided below does this quite nicely. There are examples for that lower on the page.

Is their example of this tool in the wild?
This: https://elmah.io/tools/stack-trace-formatter/

Additional context
I don't know how different the stack traces from various languages are, but one could show which language was detected or allow the user to select for themselves.