Hemingway Editor is a writing tool designed to help users improve the clarity and readability of their text. It highlights complex sentences, passive voice, and adverbs, encouraging writers to simplify their writing style. The tool provides a readability score, indicating the education level required to understand the text. Available as both a web app and a desktop application, Hemingway Editor is popular among bloggers, students, and professionals. By focusing on concise language, it aims to make writing more engaging and accessible to a broader audience.