ProWritingAid is a web-based grammar checker, plagiarism checker, manuscript editor, and personal writing tool created to assist bloggers, content creators, fiction and non-fiction authors, students, and other writers in improving style, removing errors, and more when composing written work. 

It enables users to evaluate various writing vocabularies and produce results based on metrics including grammar, overused words, readability, clichés or repetitions, sentence length, pronoun usage, and more.