Free online Grammar Checker tool — results appear instantly in your browser. No signup required.
Grammar Checker reviews your English text for spelling and grammar issues using the free LanguageTool public API. It lists each problem with a short explanation and suggested replacement so you can improve clarity and correctness before publishing. Ideal for non-native speakers, students and content writers who want a quick second pair of eyes. The tool highlights issues and provides a corrected version of the text that you can copy and refine further. Note that the free endpoint has usage limits and is best suited for moderate-length documents. For very long or highly technical writing you may still want a dedicated desktop grammar tool or professional proofreader.