Tone Mirror is a Chrome add-on designed to improve email communication by analyzing drafts in real-time. The tool focuses on tone indicators to help users avoid misunderstandings in professional emails. It provides a visual guide that indicates whether the tone of your message is friendly, neutral, or potentially hostile, helping prevent miscommunications that could lead to conflicts or stress in remote work environments.

This browser extension supports both Gmail and Outlook, analyzing text locally without sending data to external servers, ensuring user privacy. It detects common passive-aggressive phrases, assesses word choice, evaluates punctuation usage, and analyzes sentence structure to provide a comprehensive tone assessment. The unobtrusive interface allows users to compose emails with confidence, knowing their tone is being monitored for clarity and professionalism.