Corrector App

Corrector App runs online, so you paste your text into a web page and get errors flagged without installing anything.

It is a free grammar checker and spell checker that finds grammatical, spelling and punctuation mistakes in your writing and suggests fixes.

Languages include English and Tagalog, and the English side covers several dialects, which matters if you switch between, say, British and American spelling.

Corrector App also offers suggestions for sentence flow and explains why a mistake is a mistake.

That explanation is the useful part if you want to learn the rule rather than just accept a change.

The pricing model is free, so trying it on an email, an essay or a work document costs nothing.

It is listed alongside AI proofreading and AI content detection tools, though its stated job is correcting text rather than judging where it came from.