AI Grammar Checker

AI Grammar Checker detects and corrects grammar, spelling, and punctuation errors while providing contextual suggestions, analyzing text for issues from basic grammar to complex sentence structures and offering structured rewriting to make writing clearer and more concise. It performs multi-dimensional error detection covering grammar, spelling, punctuation, and subject-verb agreement, with contextual intelligent corrections based on sentence logic rather than word-by-word replacement. The tool accepts pasted text or file uploads with results delivered in under one second, supports multi-language explanations so users can view corrections in their preferred language, protects domain-specific terminology from being flagged as errors, and suggests more natural expression alternatives to improve fluency. The service is completely free, claiming a 99.9% accuracy rate across 500+ grammar rules with no paid tiers.