Disclosed are various embodiments for identifying safety concerns by employing dynamic semantic analysis on natural language provided in free-text reviews of products. A computing environment may encode user interface data that causes an event listener to monitor a free-text description provided in a text field in a user interface. A semantic analysis may be performed on the free-text description in real-time as the free-text description is generated. Remedial actions may be performed based on the semantics identified in the free-text description or severity levels associated with identified safety concerns.