Check a snippet of CSS, HTML, JSX or TSX for layout that breaks in right-to-left languages: physical CSS properties, directional Tailwind utilities, and dir problems. Returns each finding with the logical replacement. Use this before handing RTL-facing markup back to the user.

Check a file or a whole directory on disk for right-to-left layout problems. Skips node_modules and build output.

Normalise Arabic text so that forms users type interchangeably compare equal — strips diacritics and tatweel and folds the alef variants. Use it for search keys, deduplication and matching, never for text you are about to display.

Report whether a string is predominantly right-to-left, left-to-right, mixed or neutral, and what to set dir to. Use it when you need to decide the direction of a label, a database field or a block of user content.