EssayGrader is an online essay grading tool that uses artificial intelligence to provide high-quality, specific, and accurate writing feedback. Teachers can define their own grading rules based on scoring criteria or use default rules. The software's feedback report helps accelerate the grading process, quickly identify areas for improvement, and provides an overall estimated score and scores for each scoring criterion. Additionally, the software can detect AI-generated writing, identify grammatical, spelling, and punctuation errors in essays, and offer a concise summarization function.