Is there software on the world market for fast, automatic spelling correction of text files?

Question

Spellchecking

I am looking for software that will allow me to perform spelling correction of the text parsed from the forum in Russian and English in a matter of seconds.
I opened the text, pressed 1 or 2 buttons for different languages ​​- I got the finished result.
I am looking for software that operates on the principle of do no harm and corrects only those words in typos of which he is sure with a high degree of probability and which does not force the user to view a kilometer-long text file by asking him to manually confirm the correction of 1000 misspelled words. First of all, he should be able to automatically correct spelling and typos, since the final text will be subjected to speech synthesis. And when the speech synthesizer reads the text with typos, this is very critical. Willy-nilly, the question arises of how to reduce their number as much as possible in an automatic way.

Answer 1

In English there is www.grammarly in Russian, I can be wrong, but there is nothing like that, all checkers at least do not speak slang.
I thought for the Russian to do this as a pet-project, but so far everything rests on time.