The Korean Spellchecker plugin offers an integrated Korean spell and grammar checker directly within the editor. It highlights errors in selected text, provides correction suggestions, and enables users to apply changes through an interactive modal interface. A custom noun dictionary allows exclusion of proper nouns and domain-specific terms from checks, reducing false positives. The plugin supports large documents by splitting text for stable processing and adapts its UI to Obsidian's light or dark themes. Designed for writers, students, and professionals, it streamlines editing workflows for Korean content in Obsidian.