Paste a piece of writing for a readability score and teacher-style proofreading marks — spelling, tense, agreement, articles, prepositions, collocation, word order and more. Tap a mark to see the fix.
Marks are best-guess teacher annotations from common error patterns — not every flag is wrong, and not every slip is caught. Hover or tap a mark for the suggested fix. Switch off a category on the right if it's too noisy.