`codespell` works with a small custom dictionary and seems to find perhaps more spelling mistakes than `misspell` which really only fixes commonly misspelled English words.
Not all spell checkers can check all file types and most spell checkers can't find all the errors.
https://github.com/codespell-project/codespellhttps://pypi.org/project/codespell/
Misspell -> Correct commonly misspelled English words... quickly. A Golang library that runs without a dictionary.
https://github.com/client9/misspell
Can even autofix with '-w'